Les Home NBJ Ka-Band Living Stereo jOrgan Organ Design Raymond Scott
Sounds
Les Deutsch's Theater Organ Project

I will be using this page to document my project to convert a very large old analog theater organ to a modern controller console for Hauptwerk and other virtual instruments. I will update this page as the project progresses.

I have been using the software product Hauptwerk together with samples from Neil Jensen's Keymedia Productions Connoisseur Theater Organ and my existing Rodgers 945 concert organ to play my theater organ music since early 2008. You can see how I do this on my Organ Design page. I probably would have been quite happy playing this way forever, using my touch screen display to control stops and my Rodgers combination pistons to make quick changes. However, when my friend Ken Rosen (who has a very nice two-manual Wurlitzer pipe organ in his studio and lives only three blocks from me) announced he was ready to give away a large three manual theater organ console, it was an offer to good to refuse. The console in question comes from an old analog Artisan organ from the 60s, probably their "Oriental" model. These were very large kits that were advertised in such places as "Popular Mechanics". This one would have cost approximately $7,000 in the 60s and was the top of their line. I have not been able to find any photograph or specifications for this organ in its original state. However, recent research has revealed that the console was once owned by Bob Leonard, an organ enthusiast who lives near China Lake, California. The photo to the left below shows the console as customized by Bob, though it was not longer playable at the time the photo was taken in 2007. Bob, if you are reading this, thanks for making the console available! The photo to the right shows what the organ will look like when completed. It was generated from a real photograph of the work-in-progress on December 20 2009 with much of the wood "re-stained" using filters in Photoshop.

You can look at the specifications I have designed for this organ.

Skip to the latest news on the project here: June 8, 2010 – Adding a music rack.

 
Sunday, June 28 2009 – Moving Day
In preparation for the moving of the console to my house, my wife, Karen, and I completely cleaned out a small bedroom on the first floor. This was to become my organ lab. The console could stay hidden herein for as long as it took to be both playable and presentable. After that, we would move it to one of our more public rooms. Ken and I had originally planned to move the console ourselves, rolling it down the street between our homes. However, an old back injury together with mild exhaustion from cleaning out the room resulted in me hiring a short-haul mover. Karen and I went to Ken's house at 9:30 on Sunday to prepare the console for its move.
Here is what the console looked like sitting in Ken's studio that morning. You can just make out the shutters from his solo chamber to the left of the console. Ken had hoped to use the console to expand his pipe organ. He and a friend had done some work already. The stop tabs had all been removed. Ken had handed me boxes of stop action magnets (SAMs) a week earlier as well as tons of engraved Wurlitzer style stop tabs. The pedal board and music rack were lying elsewhere in the room. The keyboards are in the console – but not mounted correctly. A couple other organ friends showed up to help with the move. We took several of the smaller pieces (the bench, pedal contact assembly, music rack, piston rails, and lots of cables) to my car. The mover arrived at 10:00 and we began the arduous trip to my house.
Here you see the condole coming out of Ken's organ studio. The woman is the mover's wife. They pushed the console through Ken's pool area to reach a gate in back of his house. It would not fit through the gate. Ken had a wider gate by the side of his house, on a steeply sloped stretch of lawn. This is how the organ got here in the first place – but it was downhill then and uphill now. Six of us pushed and balanced the console on its dolly to get it through the wide gate.
Here the console has been loaded (with brute strength) into the mover's truck for the short ride to my house. The pedal board is behind the console. Karen drove my car back home with the smaller pieces and I rode with the mover. He stood in the truck bed to steady the load while his wife drove.
We arrived safely and took the console off the truck. We removed the keyboards to make the console as small as we could. After the experience at Ken's gate, I was getting doubtful we could get this thing into its intended room. In fact, after bringing it successfully through our front door, we just could not make the turn through the 32" bedroom door to place it in the new lab. We started thinking of ways to take the console apart further – but I gave up after a few applications of a hammer and chisel. Whoever had assembled this organ kit long ago had been a master with glue and fasteners! It was time for an executive decision and "plan B." Karen agreed to let the console sit in our master bedroom during its refurbishment. In return, she will get the other bedroom as a sewing room. We took the console back out through the front door, around the house, and into the master through a large French door. Here you see the console sitting next to our bed. It will remain here for some time! Notice that I have already test-fitted the four expression pedals. The left three have working potentiometers. The fourth has none as it used to have a crescendo mechanism - now missing. I will have to outfit this with a potentiometer later.
We placed the keyboards, temporarily, in the newly renamed sewing room. There are more key contacts than I have ever seen on an organ. I will have a lot of work to do removing the old cabling and accessing a few of the contacts. I also want to convert the Accompaniment keyboard to second touch. This should be possible. These are actually very nice wood core keys and well worth preserving.
Since I had the SAMs (stop tabs and magnets) for a week already, I had begun sorting them to see what I would still need to buy to fill out the bolsters. Karen came up with the idea of using an old hamster maze kit to hold the SAMs in groups of three in order. After the SAMs get tested and mounted on the console, this table (now in the sewing room) will move to the master bedroom to serve as my workbench. For now, I will use the kitchen table and a bench I have in the garage.


Sunday, July 5 2009 – Working with the used SAMs

I spent one night this last week examining the pedal contact assembly. This is contained in a wooden box that is about 6" high, 12" deep, and runs the entire width of the console. The pedals sit in front of this. When a pedal is depressed, it engages a crank on the front of this box. This, in turn, engages 16 separate switch contacts!In the original analog organ. A magnet would move each of 16 contact bars to allow the crank to close the corresponding set of contacts. I don't need that many- one will do. However, Ken had already thought of this. I looked into the box and someone (I assume it was Ken) had fastened three of the bars to they were always engaged. Then he wired the contacts for these in parallel. This should provide increased reliability. The only thing I had to do to the box was remove the old organ cabling (it was like removing a large tumor) and do some basic cleaning. The box now sits in the bottom of the organ console. I have not yet secured it in place. This will wait until I need to attach the pedal board.

When I acquired the console from Ken, I also took several boxes full of old "stop action magnets" (SAMs) that had been removed from this and other organs over the years. Some had stop tabs attached and others were empty. I also took several bags of stop tabs - although many of these were intended for pneumatic actions and I did not want to deal with modifying them to work with the SAMs. Ken also lent me an organ rectifier, which is simply a power supply that produces the voltage required to fire the two electromagnets on each SAM. One magnet flips the stop up and other flips it down. I used the rectifier to test the SAMs before installing them on the console.

I discovered that not all SAMs are alike. The company that makes these (Reisner) makes the metal protrusion to which the tabs are attached in two different angles. Only the steeper angle can be used on my console. Hence about half of Ken's SAMs (which he is selling to me at a LARGE discount since they are used) are useable.

You can see in the photo that I managed to find enough of the "steep angle" SAMs to populate the straight rail and about 2/3 of the lower horseshoe bolster. I will have to purchase more SAMs - the first major expense on my project. So far, the only money I have spent was $50 for the mover and about $50 to take my organist friends to lunch after the move!

Of course, it is too much to hope for that Ken's bag of stop tabs would have all the names I need for my specification. Actually, he had about 80% of the correct names - or ones that were close enough to use without any concern (I can use "Chinese Block" just as well as "Oriental Block"!) It is traditional to use a Dimo labeler to create the name changes on the stop tabs. When you visit pipe installations you see a lot of this. However, a Mac and a good color printer enabled a much better solution. I found two fonts that closely match the ones used by Wurlitzer on their stop tabs, color matched the specific tab colors, and printer labels to place over the tabs. Here you can see several of my labels on the straight rail. This system will do very nicely until I decide to have new tabs engraved later.

Here is a view of the back of the bolster assembly showing the SAMs mounted and lots of random wire hanging loose. I plan to mount terminal strips on the bolsters for collecting the wires and then use some sort of removable connector to pass the cables into the guts of the console. This will wait until I have purchased and mounted the remaining SAMs.

The screws on the top of each SAM (as well as corresponding ones on the bottom) are used to control the throw of the stop tabs. The idea is to adjust these so that the tabs all line up in both their "on" and "off" positions. I have done this for the straight rail. Only the "on" positions are adjusted on the bolster so far. I will wait until the next time I move this assembly to a workbench to adjust the bottom screws.

Since the original organ using this console was smaller, I have had to drill new holes for mounting more SAMs. There will be 71 SAMs on each horseshoe bolster when I am done.

Ken did not have enough SAMs for me - but he had plenty of stop taps. I have laid out the remaining tabs on a long table, backing them with 1.5" tape to hold them in sequence. Only about 20 of these need my new labels - but they all need new SAMs! I visited two of local hardware stores today to purchase some stuff. I bought lots more screws for mounting SAMs. I also bought some "mending plates". These are flat metal plates, 3" x 1/2", with holes through them. I will use these to both reinforce the bolsters and to mount separators between the organ's divisions. I also bought contact cleaning spray to begin working on the keyboards.
Here is an overview of the console after one week in my possession. There is a lot of work left!
 
Sunday, July 9 2009 – Working with the keyboards

Since I had gone as far as I could with the stop tabs, I switched gears and worked for a few days on the keyboards. You could see from the first photo of the "moving day" that the keybaords were not mounted correctly in the console when I obtained it. I wanted to be sure the keybaords were securely mounted according to AGO specifications.

The first step was to do some surgery. Ken (or someone) had already done a few smart things with the keyboards. He had immobilized two of the contact bars on each and wired those contacts in parallel. This was good. Then he had created cables from the keyboards that merged in a large set of terminal boards. Unfortunately, this ended up making all three keyboards into one giant, heavy, and unwieldy assembly. I reluctantly cut the cables so that I could handle each keyboard seperately.I then removed the magnets that used to move the contact bars in and out of position. Since these were pipe chest magnets, I saved them to return to Ken for use on his pipe organ as spares.

One problem I noticed was that the keyckeeks were only 2.25" high. AGO specifications require 2.5". This was going to play havoc with the spacing between the keyboards and the placement of the piston rails. At this point, I had resigned myself to constructing completely new piston rails using narrower molding than the ones Ken had built.

Now that the keyboards were mich lighter, Karen and I placed them in the console. We shimmed them and ajusted their tilt (using set screws on the keycheeks as well as screws on the back end of the contact assemblies.) I walked back an forth from the bedroom to my living room, making measurements on my Rodgers organ and moving the theater organ keyboards until they matched.The photo shows the result. There are definlte spaces between the keycheek bolsters that will have to be filled with something. However, the good news is that the piston boards can actually remain full-height! The other bad news was that the keyboards were not held firmly in place by any of the mechanisms that already existed on the console.

The next step was to find a way to attach the keyboards securely so that they would not move or vibrate while being played. I started by removing all the keyboards once again. I attached the accompaniment keyboard (lowest) using flat el-shaped mending plates under the overhang. Four screws attached it to the plates, which are in turn attached to the console. These cannot be seen unless you descend to the floor and look upward.

The great (middle keyboared) was a much bigger challenge. I ended up using a pair of 90 degree angle plates fastened to the inner face of the second console key tier and in turn fastened to the sides of the great keycheeks. These screws take a bit of acrobatics to insert – and I will need to remove them many times in order to further modify and service the keyboard! However, when there were combined with a new placement of the bracket at the back of the contact assembly, the great was firmly in place. Karen and I placed the solo (top keyboard) in the console and shimmed it into place. This one should be easy to secure - but that will have to wait until next week after I return from playing at the Mammoth Lakes Jazz Festival.

Before we quit for the night, we replaced the stop bolster assembly and the console lid to make sure everything still fit together properly. We then attached pedal and brought over the bench - just to see how the completed project will look someday!

Here is a photo of me playing the dummy console and imagining that sounds might be eminating from it.

 
Friday, July 24 2009 – Big decisions and the beginning of real spending

One of the things that made this project seam affordable was that my friend Ken had boxes of used Stop Action Magnets (SAMs) that came from old instruments. I did not notice until several weeks into this project that these SAMs, though all manufactured by the same vendor (Reisner) came in two different styles. Look at the photo on the right. The angle at which the metal tongue protrudes from the armature comes in two different angles. Only the steeper angle works in my console! However, Ken's SAMs were divided about equally between these styles. There were only about 70 working SAMs in the steeper angle. I would have to buy more with the correct angle or figure out some way to use the other style in the console. Hence, it was finally time to contact organ supply companies and order parts. Up to this time I had spent alost no money on this project.

I did some Internet searching and talked to a few people. I idendified the companies that had the parts I would need. There were two: Klann Organ Supplies and Organ Supply Industries. I emailed both companies, explaining both my background and my project, and after a week I called them. Both companies were very nice to me. Although they do not normally sell to individuals (since we might undercut one of their regular clients) they understood my unique situation.

Organ Supply was the first to send me prices on items I would need to purchase. It was then that I had some sticker shock. Even at wholesale prices, the SAMs I needed would cost be close to $5,000! It was then that I decided I would have another look at using the gradual-angle SAMs!

Here is what I have come up with so far. If I place a 0.5 cm shim (I used five small flat washers for the experiment) under the lower screw of the SAM, then the assembly is tilted forward enough to match the angle of the bottom tier SAMs with the steeper angles. The stop tab works fine in this configuration. I had to purchase some longer #4 screws for this, but that is fine. I'll need a lot more washers too. This tends, however, to push the top rail backward so I'll need to stiffen it with some intermediate supports.

This seamed to solve my problems – but when I began looking at how to fix some of the bad SAMs, I discovered a new problem.

As I searched for a way to resolder a magnet wire to the armature (which is used as the electrical ground) I noticed that the same ground was used for both the magnets and the stop swtich itself. From what I had read in the literature for the Classic control system, this would not work! Hence all of my SAMs may have to be replaced with more modern ones – and this would drive the price of the stops up to over $8,000!

I jotted down a circuit diagram of the SAM and sent it off to my friend Arthur at Classic. He responded quickly and explained that my SAMs would still work, as long as I sent Classic's -12V supply to the SAM's ground. I was very much releaved.

I had also been doing a lot of thinking about the manual pistons. The console did not have a combinaton action so Ken had begun assembling piston boards for it. You can see in this photo of the keyboards (which also shows how nice the keyboards are) that Ken had used a drill to gauge out clearance for the pistons on the key blocks. He had gone as far as getting some moulding made and stained and placing some pistons into it. Of course, I want a different configuration of pistons. I also discovered that these mouldings were 1/4" to short for AGO standards – and they were a bit warped too! It was also clear that they could not be mounted with wood screws into the key blocks as there was not enough material left.

I looked on line and found several moudling stores around my town and began visiting them. It was just my luck that this very ordinary looking moudling (1/8" x 1 1/2" with one end rounded) was not at all standard! I finally purchased some oak door fillet moulding. Five pieces, each long enough to span a keyboard, cost only $17.50 and it was very strong. It was also a very high quality and would stain nicely. It was, hover, 1/4" too high! The salesman at the moulding store reccomended a cabinet shop nearby that could rip the moulding to my required dimentions. I went there immediately and the owner did this for me for free! I took his card as he is the exact kind of person I will need to refinish the console when I am done making everything work.

Here is the new moulding (upper) and the molding I acquired with the console (lower, and already drilled for pistons – but not in my configuraton.) I also purchased a drill press (another $110, but I'll have other uses for it) so I can drill the holes precisely.

I need to devise a method for mounting these too. My idea for now is to have 1/8" hardwood (maybe plywood) cut to abut to the bottoms of the piston mouldings and then attach to bottom of the key blocks. This should be very sturdy yet easily servicable. More on this later.

In the meantime, I received the price list from Klann. I can now order parts from both companies – and I'll need to since neither company has everything I need. I will order the pistons from Klann since they are less deep than the other brand and can use the same Mas-Con connectors as the rest of the console (no soldering.) I'll need 66 of these, so even at wholesale prices, this is a major purchase.

I just ordered the Mas-Con connectors and lots of other electrical parts from an online catalog. I included 200 solder lugs that I'll use with the mounting srews on the SAMs to create a terminal for afixing the -12V mentioned above.

I found a good supplier for the 26 AWG stranded wire I'll need for all the cabling. It is actually located about ten miles from home, so I will pick it up in person and save the shipping cost. I'll start with 200 feet each of ten different colors of wire – another major purchase.

 
Monday, August3 2009 – A Piston Block
While I waited patiently for the pistons, toe studs, and connectors to arrive, I switched my attention to fabricating the piston boards that would need to mount under each manual. As mentioned earlier, the console did not originally have a combination action. Hence, the key blocks had no indentations to allow pistons to be mounted. Instead, the wood simply came all the way out to where the board was mounted. The original boards (long since discarded) were simply screwed into the ends of the key blocks. When the console was modified to accept pistons, the entire width of the key block was gauged back about 3/4", just short of the key guide posts, to make room for pistons. Only a small amount to wood was left at either end of the keyboards for mounting the piston blocks. I decided that this would simply not provide a solid enough support and began thinking of other ways to mount the blocks to the keyboards.
I used my newly-purchased drill press to drill 3/4" holes for the pistons under the solo manual. I chose the solo as a test case because being the topmost manual it was easiest to remove from the console. The drill press worked like a charm and the holes were very well aligned.
I discovered that I could easily purchase 1 1/2" x 1/4" thick oak strips in three foot lengths since this was a standard size for oak floorboards. The wood matched the moulding I had already fabricated perfectly. I cut a length of this to slightly less than a keyboard width (33 1/4") and used angle hardware to connect it to the piston board. I used countersunk machine screws so that there were no protruding screw heads on either surface. For the moment I used stainless steel screws everywhere but I will replace the ones that show on the piston block with black anodized screws later on. These screws were just fine for this experiment. I also attached shorted lengths of floorboard to each end of this assembly to provide a mounting surface for the "box."
Here you can see the "box" mounted to the underside of the solo manual. Notice that it attaches only on the bottoms of the key cheeks. I did this so as not to have to drill any holes in the key block and possibly damage the key guide posts. The resulting assembly is quite string, owing to the L-shaped cross section. I also took the opportunity to adjust all the key heights on the solo manual at this time. There is still a touch problem in the center octave. I think it is a problem with the felts and I will look at this later.
Here is a photo of the console with the solo piston block attached. If you look carefully, the key cheeks between the great and solo have a 1/4" (or even greater) gap. This is required in order to achieve AGO keyboard spacing. I will have to find a way to plug the gaps and make everything look right. This is a future task. Now I am off for another week of travel to Washington DC for my day job. Maybe the pistons will arrive before I return. My wife is supposed to locate a stain to use on the piston blocks before I return.
 
Friday, August 14 2009 – New Parts
 
On Monday, August 10, I arrived home from work and discovered a small package at my front door. It was the shipment of parts from Klann. Somehow, they made $1000 worth of organ supplies fit in a box only 10" x 8" x 4"! One way they made this work was by a clever method of packing the 69 thumb pistons I had ordered as shown here. With these new parts, I could continue working on the console once again.
In addition to the thumb pistons, I ordered eight new toe studs. These match the existing ones exactly. Also, like the existing toe studs, there are no wires attached!
The one oddball part I ordered from Klann was a potentiometer rack assembly for a swell shoe. Since the original Artisan organ had a mechanical crescendo mechanism, the crescendo pedal had no potentiometer. The Klann rack assembly was not a perfect match – but it was very close. I took it apart and reassembled the pieces on the existing bracket. This solution involved no welding – a very big plus for me.
Here you can see the four swell shoes including the crescendo pedal (left most in this photo.) I once again went to my Rodgers organ to measure the vertical offset difference required for the crescendo pedal. I used scrap lumber from the piston boards to create a shim and then fixed all four shoes in place.
This is what the console looks like as of now. Notice that I have doubled the number of toe studs. The ten to the left will control the pedal divisional combination action. The six to the right will be assigned to effects. Karen is now test staining the oak I used for the piston boards. Once it is stained, I can insert the pistons and mount them on the console. However, the great number of gigs I have this weekend, followed by another trip to Washington DC, will delay things a bit.
 
Saturday, August 22 2009 – Completing the piston boards
I needed one more set of parts to complete the piston boards: colored screws. I had assembled the boards using regular steel screws from the local hardware superstore. After checking a few "real" stores, I located a place called "Best West Fasteners" about ten miles from home. I stopped there one day after work and handed them the steel machine screw. The man came back with about a thousand black versions in a minute or so. I told him I needed about 20 so he gave them to me free of charge! I will remember this store for an occasion when I need to really buy something.
I needed to get the piston boards to sit closer to the keyboards. To do this, I took a hacksaw and cut down all the 1"x1" angles to about 3/4". It was a lot of work - but far easier than locating correct dimensioned parts! I also purchased some 3" tee-shaped mending plates. I cut off one of the tee parts to get an elongated "L" shape. I used these to attach the great and solo piston boards as shown here.
Here is a photo showing all the piston boards mounted in the console. The keyboards are adjusted correctly, according to AGO standards including tilt. I then removed the piston boards and handed them to Karen. I left for a three-day trip to Washington DC.
While I was gone, Karen stained the piston boards. She got stain of the right color from Ken, who no longer had use for it. Karen carefully sanded the boards and applied two coats of stain, followed by two coats of shellac. The results look great.
Karen and I used the Klann piston insertion tool to set all the pistons into place on the boards. I then cut brown felt that Karen had purchased from a local craft store into 1/4" strips and fastened it to the bottoms of the boards. The felt came with a self adhesive backing and it seams to work fine for this purpose. If it falls off later, I can find better glue.
Karen and I carefully reassembled the console and readjusted the keyboards. I added some angle brackets inside the console to fix the solo in the correct place. All the keyboards are now firmly attached and in the correct AGO configuration. The pistons look great. Of course, they do not do anything yet! Functionality is still to come. The console has a much more finished look now, however.
 
Monday, August 31 2009 – I do not like you, SAM I Am!

With the piston boards completed (albeit without any wiring - built that's the easy part) I turned my attentions back to the stop rails and those evil SAMs. Although I could order completely new Syndyne SAMs for this organ for just over $3,000, my wife thinks that's a bad idea. She wants me to have lots of fun spending lots of time on this project!

I have a box of correct-angle Reisner SAMs labeled "evil." The SAMs in this box do not work, for various reasons. However, the biggest problem seams to be magnet ground wires that have broken off from the armature. My previous attempts to simply solder the wires back to the armature failed because the armature is made of thick steel (it might be brass coated in something, I discovered later) and the magnet wires are very thin.

My new idea is to solder the broken wires to solder lugs. Finding solder lugs is a bit difficult since no one uses them anymore. However, I ordered a bunch online and found that Electronic City (a store in Burbank I frequented as a kid) is still in business and carries them.

Here you can see the ground wire from the left magnet soldered to a lug. This is still pretty delicate work.

I then drilled holes in the armature and fastened the lugs using small machine screws. I was careful to bend the lug so that the wiring would neither touch the moving parts of this SAM nor anything on the adjacent SAM after installation. The final step is a testing of both magnets using a test meter. I also test each of the switch contacts to be sure everything is working. The contacts are delicate and exposed - a poor combination. I know I'll have trouble with these later.

However, at least for now I have more good SAMs than I did yesterday! I have now repaired ten SAMs.

 
Monday, September 21 2009 – Back to the SAMs, lots of supplies arrive, and the organ grows in ranks!

After I successfully repaired 38 SAMs I was feeling pretty good. I rewarded myself by purchasing the next eight ranks in the KeyMedia Connaisuer series. In return, I had to make these additional ranks fit on my current design using 165 SAMs (25 on the straight rail and 70 on the two bolsters.) The new ranks included four I really wanted: a krumet, a musette, a second tibia, and a second vox humana.

As usual, I designed a touch screen control display to test my new specification. It is shown at the right. I used my Rodgers to test the new specification. The funny little half-size tabs are my solution to not having enough SAMs. I took a trick from George Wright and placed an "alternate traps" tab in both the accompaniment and pedal. Then each tab controlling traps actually controls two, depending on the position of this shift key tab.

I am now going to be working a lot on the bolsters. Certainly it is good idea to take the bolsters out of the console and place them on a work bench. However, their odd shape makes this awkward. I had been doing this using a set of phone books to balance the bolster assembly. This would not do for the delicate SAM work I wanted to do now - using my precious repaired SAMs.

I bought a chop saw (I actually wanted to buy a new miter box, but the power saw cost only $50 more and the miter boxes I found looked rather flimsy) and its first use was to fabricate a bolster assembly stand. Here you see it, with the bolster assembly (minus the top rail) in place. I built it on a solid plywood base with felt feet so I can place it on a table. I also put two strong handles on the base so Karen and I could carry the bolsters between rooms. The stand holds everything in the correct orientation and gives me great access to the SAMs.

While I was working on the bolster, the remainder of my hardware orders were delivered. Here you see bags of hundreds of solderless Mas-Con connectors that will form the ends of the cabling. There are several online electronic supply houses that sell these at very reasonable prices - with quantity discounts.
Here some parts I ordered from Organ Supply Industries. I am very grateful to this comp.any for agreeing to sell me parts. They have been great to me. Here you see the parts I need to add second touch to the accompaniment keyboard. The springs are to the right. The felt punchings should extend the key screws enough to engage the springs. I'll get to this after working on the bolster for a while!
Here is my sostenuto switch, also from Organ Supplies. It will be mounted on the leftmost expression pedal.
My order of connectors included 200 small solder lugs. I am glad I had the foresight to order them as it has been so hard to find them in local stores. I need one for each SAM as shown. I stripped lengths of wires and soldered the lugs into a chain. I then screwed one on the bottom of each SAM. I have such a "bus" for each set of stop tabs, but no more than 15 in a row so as not to drop voltage too much. The lug on the end of each chain has a second hole so I can solder a feeder wire with -12 VDC.
Here is the straight rail and lower bolster completed. Some of the tabs have the wrong labels. I will add computer labels for them until I decide the specification is truly stable and order newly-engraved tabs. I had actually repaired enough SAMs to complete the first bolster and I have 17 more to begin the top one. That leaves me 53 short. If anyone reading this has some SAMs, please contact me and I'll arrange to purchase them from you! I have put feelers out on both the Hauptwerk and jOrgan fora.

I played the 3-27 specification I designed using my Rodgers for a couple days and discovered a couple of minor deficiencies. In particular, the piano release samples were too abrupt and the vibraphone (which I really wanted to add) did not have controls for either the motor or the dampers. I emailed Neil Jensen and reported this. He responded very quickly and told me that he is working on an upgrade that will fix both of these. Then, one day later, he emailed me again saying he is sending me the 3-35 package (his complete organ samples) as a help to my project. The 3-35 organ has both of these corrected!

I was quite surprised and immediately emailed back by thanks to Neil. All I can say is that the samples have been top quality and Neil backs these with excellent response and service. All of this and he also plays a mean theater organ. Although I have not been to Australia in a number of years, I will definitely look him up on my next trip.

 
Monday,October 12 2009 – "Final" specification and tongue transplants

I developed a new specification for the organ using 30 of the 35 ranks in Neil's 3-35 sample package. Of course, no 1920's era theater organs with only three manuals had as many as 30 ranks, so I had to draw my inspiration from large organs, more modern rebuilds, and other electronic organs. I sent my draft specification to several theater organists that I know and respect. What ensued was a nice little debate over the relative importance of various stops. I made two changes based on the email responses and I updated the specification on this web site.

Here is the jOrgan console I created for the new specification. I got it working with my Rodgers to try things out. It sounds great and I have all the sounds I think I will want. It is very nice to have the larger scale solo tibia, the style "D" trumpet, the better piano, and the vibraphone. I also now have a nice 32' diaphone to anchor the pedal.

In the "what else can go wrong" department, the "5" divisional piston on my Rodgers popped out and I now need to schedule a service call!

I had a great idea driving home from work one day. Ken had given me a small box of stop armatures without magnets. These are also Reisners and the tongues have the correct (steep) angle. Maybe I can transplant these tongues to some of the Reisner SAMs that have the shallow tongue angle? I used a small nail to hammer out the pin that holds in the two tongues. I then carefully moved the steep tongue to the SAM and hammers the pin back. It looked fine - but it did not move fine. Somehow, the act of removing and registering the pin created binding that caused the tongue to move with too much friction.

My solution was to go to Home Depot and buy a box of 1" #16 nails. I used these to make fresh pins for the tongues. I carefully bent the pointed end of each nail to keep the nails from falling out. The result looks a bit funky but truly works correctly.

Here you see a disassembled SAM awaiting the transplanted tongue.

Here you see another photo in the tongue transplant process. It shows the nail installed as the replacement hinge pin. I now have 29 SAMs. I also can take the seven remaining steep angle SAMs and transplant their tongues too, assuming I decide that is easier than repairing them. This will give me 36 SAMs -one more than enough for half of the top bolster. At this point, I will be completely our of workable SAMs in both angles so I will need to find 34 more to complete the project - and probably a few spares for ones that actually do not work after final assembly.

I also sent a request for quote to a company for engraving stop tabs. I decided that, if this is not too expensive, I should do this while I have the bolsters on the workbench. As I wait for the response, I will be away most of the next two weeks playing jazz with the Nightbloomers.

 
Saturday,November 7 2009 – Stop tabs and a test keyboard – and the very first notes (sort of)!

The company I chose to engrave the stop tabs was Arndt Organ Supply. I had read a lot of testimonials to the company on line and had gotten their catalog. I had not heard back from them for several days and my wife and I had gone to Sun Valley Idaho where I was performing in a large jazz festival. During the festival, Bob Arndt, the owner of the company, sent me a very nice email message. It turns out that he is also working on a large three manual theater organ for his own home and he is using the samples that I have chosen. He sent me a photo of his console under construction. It really makes a difference if you own a company that builds consoles! His is a work of art. In any case, he sent me his price list and I decided to have him build 82 of the 165 tabs I will need. The remaining 83 would come from the collection I obtained from Ken Rosen. I also ordered console tags from Arndt, the little labels that indicate the various divisions along the bolsters.

With the stop tabs under control, I turned my attention to the keyboards. I had originally planned to create long extension cables so that I could play the organ with a keyboard removed from the console. In this way I could adjust the contacts and action using sounds as my guide. Now I had a better idea. I used Craig's List (a suggestion from my son, Elliot) to find a very cheap 61-note MIDI keyboard for sale in my area. For $60 I purchased the Yamaha keyboard in this photo. It is almost new and works completely.

The idea was to wire cables in parallel with the keys and so I can plug any of my organ keyboards into the Yamaha and use its tone generators and MIDI to hear when the contacts actually fire. I took the Yamaha apart and found how the keyboard was scanned and connected to the tone generator board. Unfortunately, the scan logic was such that a simple parallel wiring as I had planned would result in my external organ keyboards being able to play only six different notes! I could not play real music, but I could still do the testing and calibrating that I need. I soldered a wire at one end of each of the key contacts and one more to a circuit board with the scan logic. I had to drill a hole in a small circuit board for the latter.
The other end of the wires are connected to eight 8-bit ITW-Pancon MasCon connectors. These are the connectors that Classic Organ uses for the control computer - so these are the ones I will use for most of the console wiring. This was the first time I had attempted to connect wires to the MasCon system. It was very easy! The tool I had purchased for the job worked like a charm. This is much more pleasant than soldering - and probably a lot more reliable.
Here is the Yamaha keyboard reassembled with the eight cables coming out of its side. It is ugly but very functional. In addition, I actually did this in a way that the Yamaha is still fully functional in its own right in case I need it for some gigs!
I received the 82 stop tabs and various console tags from Bob Arndt soon after. Here is a photo of some of them. They are excellent and will make a huge difference in the look and playability of the organ. I carefully went through the order checking it for accuracy and discovered only a single text copying error in the entire bunch - quite a testimonial to Bob's company. In addition, he even corrected my spelling on two tabs! Otherwise, I would have had some "Castinets" and a "Libelich Flute!"

There was one problem, however. For whatever reason, Bob must have missed a diagram I sent that showed where the mounting holes should be drilled to match my existing stop tabs. In its absence, Bob used a standard location and it turned out the two were not the same. In the photo, I show one of my existing tabs (left) and one from Arndt (right) with the mounting holes lined up.

Bob and his company offered to replace all the tabs in the order. Rather than have him do this, we agreed that I would order the remaining 83 tabs so that they would all match completely. Bob even gave me a discount on the new order. Bob has demonstrated both a quality product and a high business ethic and I definitely recommend his company to others who are building or restoring organs. (I hear he is also a fine organist.)

On the evening of November 6,Karen and I assembled the various parts once more so we can see the overall progress. Of course, nothing plays - yet. I hope to remedy that soon. The tabs will all be replaced with the Arndt tabs after the final shipment arrives in a week or so. I also still need another ~35 SAMs to complete the top bolster. But overall, it looks great. I invited Ken Rosen over to see the progress Karen and I had made using his discarded console shell. Ken also spent a couple hours at my Rodgers playing the theater organ specification through jOrgan and Hauptwerk on the touchscreen. He gave it a thorough workout trying registrations in various organists styles. I think it passed the test.
The next morning, Karen and I took the console apart once again. We moved the great manual to the workbench. I created a MasCon cable with the top five notes plus the common wire. I then attached it to the corresponding cable on the Yamaha test keyboard. We turned it on and it actually played! This counts as the first notes played by the console in this project - even though the keyboard was out of the console and the sound was a pretty bad grand piano patch.
I wired the remainder of the great manual and tested all the contacts. One contact's feeder wire had been broken so I will have to repair it. The rest seams to work! There is defiantly some contact bounce and dirt issues. I will have to got through the contacts and clean them. However, this is a very major milestone as it shows that the keyboards can be made to work.
 
Sunday,November 15 2009 – Solo manual contacts and an eBay purchase (I hope!)

A little additional work resulted in the completion of the contact wiring for the Great. I even used my router bit in my drill press to make a groove in one of the key cheeks through which I can route the wiring from the thumb pistons. However, when I went to assemble the wiring for this I discovered that the 2-terminal MasCon connectors I had received were incorrect. They were all terminating connectors rather than through connectors. Since I need to pass the common wire through all of the these, I was stuck. I was not able to convince Online Components that they had made the error since I had waited past their 21-day return period. Hence I simply ordered the correct part (as well as a lot more connectors) and went on to the Solo keyboard.

The Solo was a lot more work than the Great. For one thing, the keyboard needed a lot of adjusting. Also, many more contact wires were broken and many fewer had good wire leads. It took several evenings of careful soldering to get it all wired.

This photo shows how I used the old wire linkages (that used to go to magnets for actuating each row of contacts) to force several rows on contacts to be permanently engaged.

Here is view of the ends of the keys where they link to the wire cranks that, in turn, engage the many rows of contacts. Since these keyboards are about 45 years old, the wood lamination has lost much of its elasticity. Hence it is no longer possible to simply use the rear screws to adjust the throw of the cranks. Here you can see one key where the top layer has completely broken off. I simply used some thick felt to compensate.
I had to do some pretty creative wiring and use four rows of contacts to ensure that each note had at least two wired in parallel. However, it eventually was done. Here is a shot of the Solo keyboard wired to my test Yamaha keyboard. It all plays fine.
In what is either the greatest lucky coincidence or a big scam, another organist who was reading this web site emailed me to let me know of an eBay auction of Reisner SAMs! Indeed, there was an auction of 40 SAMs that appear to be the correct tongue angle. Its also almost exactly the quantity I need. In addition, they look to be in much better shape than any of my SAMs, though they also date to the 1960s. It is possible they never made it into the kit that someone was building. I put in a bid. Someone actually bid against me! These are pretty obscure parts so I was quite surprised. However, I won the auction at much less than my upper bid limit. I have paid for the SAMs and I await their arrival. If these arrive and have the correct angle and work (or can be repaired) then I have enough to complete my console!
 
Saturday, November 21 2009 – Sam I am, and just listen to those toe studs!

While I was waiting for my SAMs, extra connectors, and stop tablets, I decided to pull out the pedal contact box and add its wiring. I started by removing the chest magnets that were used to engage the individual contact bars on the old Artisan. There were twelve of these. Since they stuck up out of the box, I could now make the box a bit smaller, leaving additional room in the console for the Classic computer system. I purchased a 8' x 4' sheet of masonite for the task. I had the folks at Lowe's cut it down to the correct size, and also cut the remainder into small enough pieces to fit in my little Mercedes wagon.

I wired the pedal contacts in the same way I did the two manual keyboards. I had to reroute all the old wiring because, for some reason, someone had looped all the wires over the lip of the wood. These wires would be pinched between the contact assembly and the bottom of the console - not a good design.

I was quite surprised when a "box-o-SAMs" came to the house on Thursday - only four business days after the auction. Unfortunately, Karen did not hear the delivery and by the time I returned home from work it was too late to retrieve it from our local post office. Karen picked up the box on Friday. Here is what a box-o-SAMs looks like. It is quite heavy.
I spent Friday evening testing each of the SAMs. They are all the correct tongue angle and they all work. Since there are 40, I should now have enough to complete the console, plus a small number of spares. The SAMs came with some very old classical style stop tablets. One was broken - but I have 39 of these if anyone wants to buy them from me! The organ from which they came must of been very strange. All the stops in the manuals were at 8' pitch and there were couplers of all footages (including things like 2 2/3' and 1 3/5'.) The first organ I ever played, at my parents house when I was only three, was a Conn Artist with this kind of specification.
Next I moved to the toe studs - specifically the ten pedal divisionals to the left of the swell shoes. When I removed one of the old ones that came with the console I discovered they were double touch. I elected to wire them as single touch pistons. Karen came up with this novel solution to holding the toe studs while I solder to the contacts. It is the end of a foam pool toy. I enlarged the exiting central hole to fit a toe stud securely. Since it is foam, it does not scratch the chrome finish - yet it holds the toe stud well enough to apply pressure with a solder gun.
Here you can see Karen installing one of the toe studs. The two wires pass through a small hole I drilled in the fall board.

Here you can see the toe stud wiring on the other side of the fall board. I wired the toe studs to MasCon connectors. I then plugged them into the Yamaha test keyboard and played the toe studs! I could even play them polyphonically!

We then repositioned the pedal board and I adjusted the interface between the pedals and the pedal contact box. I had to adjust some of the brackets that are on the ends of the pedals so that they had the correct high with respect to the contact cranks. When it all worked well enough, I fastened the pedal contact assembly to the bottom of the console with steal angles. Surprisingly I could find no evidence that the assembly had ever been secured to the console in the past! When we got it from Ken, the box was simply sitting on the bottom of the console.

 
Monday, December 14 2009 – Piston cabling and lots o' SAMs on the bolsters

While waiting for the remaining 83 stop tabs to arrive from Bob Arndt, I returned to the piston rails. Now that I had the correct two terminal MasCon connectors, I assembled a cable for the pistons under the Great manual. No soldering was required! Technology progress is great. Here you see how it works. A common wire (-12V) passes through all the connectors while each piston adds a signal wire of its own to the cable. This makes 24 wires for the 23 pistons under the manual. However, one piston under each manual is lighted, requiring an additional two wires. That single four-terminal piston is serviced by two 2-terminal MasCon connectors that simply abut each other.

The wires are passed through a slot I routed into the left key cheek and then to the back of the keyboard where they terminate in four 8-terminal MasCon connectors. Unfortunately, the slot I created was not nearly deep enough and also needs to taper toward the read - something I cannot do with my drill press!

After "playing" the pistons with my Yamaha test keyboard to make sure all the wiring works, I took the cable off to be stored until I can fund someone with a router to help me cut a better slot. Here is what the cable harness looks like by itself.

The Arndt stop tabs have arrived! They truly look great. I resorted both shipments into console order using the plastic packages in which they came.

When I started mounting the stop tabs in my SAMs I discovered that not all SAMs have the tongue holes in exactly the same place. I have three different batches of SAMs and each has a slightly different hole location. The three batches include the two I received from Ken plus the shipment I purchased on eBay. I did a quick accounting of the SAMs in each batch and found a way to place like SAMs in each row of each division. The spaced between the divisions will disguise the differences.

The straight rail assembled trivially as before. The first bolster however had some overlap in the SAM mounting with the edges of the straight rail. I took a sharp hack saw to my precious SAMs to narrow the lower mounting edge and make them fit flush against the wood. Here you can see three SAMs with saw cuts - although these are on the second bolster in the accompaniment where they interfered with the first bolster. The SAM mounting must be precise with respect to the slots or the stop tabs will not retain full motion. I had to re-drill many SAM mounting holes to make everything line up perfectly - or at least good enough.

That's a lot of SAMs! 165 to be exact. It turns out that I accidentally counted some remaining damaged SAMs when I began this assembly - and I actually broke one SAM with an errant finger! Hence I am still seven SAMs short of a console (as they say.) I used some damaged SAMs to complete the sweeps anyway so I could be sure all the holes were drilled correctly.

Lucky for me, Willis Chase, the owner of Chase Organ Company in Lancaster, California, called me around this time to tell me he saw my "want to buy" add. He has 36 more Reisner SAMs that I can purchase. I will visit him next Saturday and buy the SAMs. This will give be enough to finish the console and have a good supply of spare SAMs. After all, the real test will come when I hook all of this to the combination action and see if the magnets will indeed move the tabs smoothly.

Here is a photo of the completed (with a few bad SAMs) bolster assembly. I will plug the holes between the divisions with decorative molding in the near future. Then I should put this thing back in the console for some photos before continuing. I am making good progress.
 
Sunday, December 20 2009 – Completed bolster assembly, test fitting,more SAMs, and virtual refinishing
I purchased some decorative molding and cut it into small pieces that will fit between the the divisions on the bolster. I then cut small pieces of 1/2 inch square wood at the same angle as the top tabs. I glued one to each piece of molding. Karen then stained and shellacked these assemblies to match the maple color of the bolsters.
Here you can see two of these "division dividers" in place on the bolster assembly, while it was still on the work bench. I fixed two small strips of brown felt behind each piece so it would not scratch the bolsters.
The division dividers are attached to the bolsters using gusset plates I cut from masontite. Each plate has three screws. The outer screws attach the plate to the bolsters while the center, longer screw goes into the division divider assembly. I predrilled and tapped these holes so they was little change of breaking the division dividers apart during this assembly.
I had to do one more thing before we could place the bolster assembly back into the console. SInce the console had never had SAMs all the way to the right edge of the console, the wooden brace under the right side console lid had to be carved back to provide clearance. I purchased a couple of extra long (about 12") drill buts and used my drill to bore many adjacent holes down the length of this brace. I then drilled a second set of holes down from the top to meet these. FInally, I used the drill to merge the holes together until the piece dropped out. I then finished the gouge using a grinding drill bit and some sandpaper.

Karen and I carefully carried the bolster assembly, still attached to the bolster support frame, into the bedroom and placed it on our bed. It is now a lot heavier than it has been due to the mass of 165 SAMs! We then slowly moved it from the frame to the console. Although we did this with no problem, it was very hard work and I will try to minimize the number of times we have to do this for the remainder of the project.

Notice that the bedroom does not look as nice as before. A few weeks ago, while I was playing at a jazz festival in San Diego, a hot water line burst in our master bathroom. Luckily, Karen was home and the leak was stopped in about 20 minutes. This was enough time to damage the lower part of the wall in three of our rooms as well as portions of the carpets, drapes, and wallpaper. You can see the carpet cut away to in the foreground. The drapes behind the console are at a contractor for repair so some old blankets are in their place on the French doors!

We called Ken Rosen to come by and see the console. Although it was already pretty late (around 10:30 PM) Ken stayed and talked for an hour. I returned to Ken all the stop tabs I decided not to use. I also took the required "sweep" shots of the console since this is pretty much what it will look like when it is all complete. Here is the "full sweep" photo.
Here the "left sweep" showing the pedal and accompaniment stops. You can also get a good look at the division dividers. They really add some class to the bolsters.
Here is the "center sweep" showing the great stops and the straight rail. The round colored lights in the center of the lid were meant to be a crescendo pedal indicator system - but they were never connected! I will remove them and have the holes filled in. I also plane to replace all the incandescent lights in the console with nice, efficient sold state lights (LEDs). Its the least I can do to compensate for the fact I need enough current in the console to fire 165 magnets!
Here is the "right sweep" showing the solo stops. I have used just about all the available space on the bolsters for stop tabs. I suppose I could put eight more on if I give up the division dividers ...
Earlier in the day, Karen and I drove and hour North to Lancaster to visit Willis Chase of Chase Organ Company. Willis responded to my "want to buy" add for SAMs. He is a small manufacturer of electronic organs. He used to use the same model SAMs that I am using - but a while back he switched over to lighted push buttons for his stops. That left him with 36 Reisner SAMs still in their original boxes! These have never been used, though they are old enough to have been purchased directly from Reisner. I bought the entire lot. By the way, Willis has quite an exotic inventory of organs, organ parts, and old electronic equipment. He has no web site, but interested people should call Chase Organ Company at (661) 433-7471. He is getting ready to retire so you could even buy his company! We had a great time telling each other stories from the organ business.
This is what Reisner SAMs look like in their original packages. They came two to a box. These "newer" SAMs differ from my 60s and 70s SAMs in a couple ways. The most obvious is the blue wrapping around the magnets. The common magnet leads are now soldered to the sides of the armature rather than the bottom. Also, there is a plaster sleeve on the tongue where the pin goes through. I will put these SAMs in the bolster to replace the non-working ones that I emplaced as place holders.
Since I am fairly proficient with Photoshop, I decided to see how the completed console might actually look. FIrst, I isolated the broken bedroom background so that the console floats on a sea of black. Then I create a layer and isolated all the console parts that I intend to have refinished in darker wood. I used Photoshop's controls to re-stain these to a dark walnut. This photo is the result.
Here is the console done in a glossy black finish instead.
And here it is in white. I can easily generate more choices. I won't actually have to decide for a few more months.
 
Monday, December 28 2009 – Cheek slots, piston cables, and triangles
Though it seams a shame, we took the console apart again - including removing all the keyboards. There is still much work to be done. The bolster is stored on its stand in the work room for the moment. I took the accompaniment (bottom) manual and wired the primary key contacts. This work went very fast as Ken had done a great job on the wiring. ALl I had to do was add the MasCon connectors and test everything. I also clean the keys. This manual will have second touch - but I did not have time to install it at this point. I tried an experiment and actually temporarily installed two second touch springs to see if it would work.

Here is my plan for adding second touch. The key movement is restricted in the top of its motion by a screw that sits in an inverted channel. I have been adjusting the key height using this screw. The basic idea for the second touch springs is that they engage this screw as it is pressed below the channel. I placed a board below the key block to hold the springs (there is only thin air at the moment where the springs should be attached!) The spring is adjusted to span the bottom of the channel. I loosened the screw so that more of the key motion would engage the spring. The first thing I noticed was a metallic click when the screw hit the spring. I eliminated this by placing a small piece of felt on the spring where the screw hits it. The result was not perfect, but I can see that it WILL work with a little more adjustment. I had to remove the test so that I could proceed with the key cheek routing.

I still need a way to pass the piston cables to the back of the keyboard assemblies. I planned to do this by routing a slot in the inner surface of the left key cheeks. However, my attempt to do this myself using a routing bit in my drill press failed. A friend of mine from work suggested I call Paul Graetinnger, a mutual friend. I contacted Paul a month or so ago and he agreed to help me with this. I had to wait until today to have a good time to visit him. Paul has a large wood shop behind his house with every kind of tool imaginable. He set up a router on work surface and helped me create the required slots.

We started by extending a slot on the inner surface of the key cheek from the point where it meets the piston rail all the way to the back of the cheek. We then cut all the way through the back of the cheek to give the cable an exit point. We joined the two cuts with a second channel. The result may not be pretty - but it is exactly what I needed.

Here you can see the accompaniment keyboard with the piston rail and cable installed. The cable emerges near the back of the key cheek. It then passes through a pair of slots I cut into the contact assembly and goes to the rear where it terminates in MasCon connectors. I repeated this for the other two manuals. It all worked great. I tested each one before mounting them in the console. I wanted to be sure things still fit together properly.

I discovered one minor problem. The "Set" piston (leftmost on the accompaniment manual) seams to have been pushed halfway out by pressure from the cable. I'll correct this the next time that keyboard is on my workbench.

Karen and I did one additional thing this weekend. I attached metal angles at the rear of each keyboard and we repositioned the metal triangular braces that hold the back of each keyboard. The original holes in the wooden keyboard frames were badly cracked and I wanted to be sure that the keyboards were mounted as solidly as possible. This also allows them to swing upward for minor servicing.
 
Sunday, January 3 2010 – Project on hold for bedroom repairs!
A you could see from recent console photos, our bedroom sustained some bad water damage. It happened over the Thanksgiving holiday. Luckily, Karen was at home at the time (I was playing at a jazz festival out of town) and she was able to stop the burst water pipe in less than 30 minutes. Even so, it was enough time for the water to begin to permeate the walls and carpeting in three rooms of our house - including the master bedroom with the theater organ console. It has taken this long to settle with the insurance company, select new paint colors, carpeting, and wall paper, and hire contractors The repairs begin tomorrow and will likely last for about two weeks. We had to pack our master suite. During the repairs, Karen and I will live in our children's two rooms upstairs - since they have both moved out at this point of our lives. The organ console has its keyboards installed, but the bolster assembly is still in my work area. I see no reason to place it in the console just to make it heavier for the furniture movers!

Here is the bolster assembly. All the knickknacks from our headboard are spending the repair period with the stop tabs. Since the organ console will be moved to our family room during the repairs, we may let it stay there afterward. I am sure the movers won't mind!

I will spend the next few weeks attempting to round up 25-pin MasCon connectors so I can wire the bolsters. At that point, I will be ready to connect to the Classic master computer - which I still need to purchase.

 
Wednesday, February 3 2010 – Project still on hold, but the music continues

Our master bedroom rebuild is about three-quarters complete now. We are still waiting for the carpeting to be delivered and installed. In the meantime, the organ console is sitting in its new home in our family room - except for the bolster assembly which is still in the lab. The center of activity for the project has shifted to Toronto where the good folks at Classic Organ Works are assembling the "Grey Box" that will convert all the keys and stops to MIDI signals and provide the coupling and combination action. They have sent me a stack of wiring diagrams(actually its a folder of pdf files). I also managed to find some 16-pin MasCon connectors that I will use to wire the bolster.

I also attended the West Coast NAMM Show. I have done this every year for the last 35 years at least. I look forward to NAMM every year. I keep up with everything that is going on in the music industry. Since I play many instruments, its also a great opportunity to sample all the new products. Here you see me playing a contrabass flute from Jupiter (the company, not the planet.) It actually DOES play - though it takes so much air that you could pass out after eight measures!

I contacted Classic and discovered that Darryl Wood would be attending NAMM for them. I emailed Darryl and we met at the Rodgers exhibit area. He had his lovely fiancee with him. We talked for quite a while.

Here you see my daughter, Erica, and I trying out plastic clarinets. These instruments are entirely made from plastic - including the pads, springs, and reeds! They play (in C) but play a lot better if you substitute cane reeds. I also played some very nice new tubas from Kanstul. Their demonstrator, Howard Miyata, is a colleague of mine from the Dixieland festival circuit. We played jazz duets together for a while but I did not get a photo.

On January 30, Caltech held its big annual jazz concert. Paul Lopez was our special guest star for the evening. Paul, shown here conducting from his chair, is pretty much single handedly responsible for developing the salsa big band genre in the 40s through the 60s. He played trumpet, composed, and arranged for all the big names - even Tito Puente. I played lead tenor in the concert, and my son, Elliot, directed the student band in a chart he composed for the occasion. We had about 1,200 people in the audience - a lot for a Caltech concert. Here is a recording of the closer for the evening, Dazzle, written and conducted by Paul Lopez and featuring me on piccolo.
 
Tuesday, February 16 2010 – New home and new pots
Progress continues at a slow pace while the master bedroom rebuilding nears completion. Here is a photo of the console sitting in our family room. This is the room it will likely occupy when it is complete. The room is 30' long, has a 16' pitched ceiling, and has hardwood floors. Today, the console sits atop pieces of the old master suite carpeting to protect the wood floor during work.
I took advantage of the lull in activity to revisit the sostenuto switch. When I received the part, I did not see an easy way to attach it to the expression pedal (it goes on the left most expression pedal.) The problem is that my expression pedals have a stamped metal edge that creates an outline groove. The mounting screws for the switch cannot go in this grove - but instead must sit about 3/8" inside the pedal's surface. We had to pull the rubber tread back to expose the metal and drill the holes. The rubber will be cemented back in place - but only after I prove to myself that this is completely working!
Here is a view of the bottom of the expression pedal. I used the 1/2" metal spacer that came with the switch to mount it to the pedal. This provides about the right amount of protrusion - plenty for the foot to engage the switch. I had to cut the curved metal stamping on the expression pedal around the switch and bend the metal back on itself in order to let the switch have the proper motion.
When I examined the circuit diagrams from Classic, I discovered that they expect the potentiometers on the expression pedals to be 10K ohms. I wrote to Classic to find the acceptable range However, my existing 200 Ohm rheostats would simply not work! SInce I had purchased a new rack and pot assembly for the crescendo pedal, it was fine. I had to replace the three other pots. I went to a local electronics supply store and purchased three 10K ohm pots with 1/4" shafts. I had to cut the shafts down a bit so they would not interfere with the adjacent expression pedals. I then carefully removed the old pots, transferred the gears to the new ones, and installed the new pots. This was a very easy task that took only 30 minutes total.
 
Monday, March 22 2010 – A new set of pedal contacts

One of the many suggestions that Arthur Crtichley of Classic made early on was that I should consider replacing the old Artisan pedal contact assembly with contacts that are mounted directly to the pedal board. Since the Classic "Grey Box" is still in construction, I had the time to finally consider this. I also took the time to order a 70 amp 12 volt regulated power supply from Astron. It will take a month to arrive but I'm in no hurry. I need 70 amps to drive all the SAMs - and the supply weighs close to 50 pounds! I will want to mount it on the floor of the console - space now occupied by the Artisan pedal contact assembly! All the more reason to replace the pedal contacts.

I did some research online and determined that Peterson Electro-Musical Products had the best sounding pedal contact system for retrofitting an existing AGO pedal board. I sent an email message to the contact address on their web site and Scott Peterson himself responded. Scott is the son of late company founder Richard Peterson, who invented (among other things) the Peterson Tuner which is the gold standard in the organ industry.

Scott showed a keen interest in my project and in helping me in any way he could. Perhaps it is because we are both sons of important organ inventors. We corresponded for a while and I sent him photos of the pedal board and manuals (I am still looking for an easier way to implement second touch). He actually asked one of his designers to help – before I had spent a dime. They sent me a full size drawing of a crosspiece to be mounted under the pedal keys. I transferred the drawing to a piece of foam board. Here you see Karen helping me fit it to the pedal board. I sent a modified drawing back to Scott indicating the changes needed to make it fit.

A couple weeks later I received the wooden crosspiece and a box of Peterson pedal contacts and cables. They fabricated the crosspiece for me at a very low additional cost - and even supplied pre-drilled mounting cleats and screws – and it was already painted black! Here you can see the piece installed on my pedal board. The Peterson kit comes with this metal drilling template. I used it to mark the location of the 64 mounting holes. My drill press made quick work of the holes and a hand drill helped install the contacts.
Here is a Peterson pedal contact. It mounts to the crosspiece and the plastic bulb abuts the bottom of a pedal key. As the key is depressed, a magnet on the back of the medal blade swings toward a magnetic reed switch mounted on the small red circuit board. In this way, the only thing that gets connected to the keys are short pieces of felt that eliminate any clicking sound.
Here you can see all the contacts mounted to the crosspiece. The kit came with a cable that mounts (without any soldering) to connectors on the individual circuit boards. You can see that it is connected to a junction board at the top (in the photo) of the pedal board. A second harness (also provided) will connect this to the organ and provides a quick disconnect for removing the pedal board. The biggest surprise for me was that Peterson included an inline contact tester on the junction board! There is a set of 32 LEDs and a pair of power terminals. I clip leaded a 9-volt battery to the terminals and brought the system to life. Depressing a pedal key lights one of the diodes - assuming the contact is properly adjusted. A plastic screw on each contact is used to adjust the switch closure point relative to the key throw. I adjusted all the keys to make contact at approximately the 50% throw point in under five minutes! The Peterson system is a class act. They provided all the screws and felts - with extras - and a good set of instructions. The entire job took less than three hours of total work - and it all worked the very first time.
 
Monday, March 29 2010 – Building a baffle for the expression shoes

Here is another little task that I had been putting off. Some of the early photographs of the console clearly showed an attribute of transparency! Since there is no back on the console (yet) light shines through the various openings and makes the think look quite hollow. The bolster slots used to be the biggest offender, but now that they are plugged with all those SAMs, they look fine. The opening for the four expression shoes was now the biggest problem. I decided to address this by building a baffle – a box that surrounds the shoes from the back. My Rodgers has such a baffle. These add to the finished look of a console.

I built my baffle from Masonite with a frame of 1"x1" lumber as shown here. The jag in the side piece fits around the wooden beam in the console to which the expression shoes are mounted.

Here you can see me fitting the mostly-finished box to the console. Only the top piece of Masonite is missing t this point.
Here is Karen painting the inside of the box flat black. You can also see a bit of our back yard.
The baffle is now installed in the console. It is fastened with four metal angles – two on the floor of the console and two on the cross beam to which the expression shoes are fastened. With the old pedal contact box removed, there is a lot of room in the console for all the stuff I will be adding soon!
Some of you more astutue readers probabky noticed that console is sitting in yet another room of my house! Tonight is the start of Passover and we are having 20 guests over for dinner. The only room we have large enough for such a meal is the family room, so the console had to move once again. It is sitting in the breakfast area of our mitchen – for the next few days.
 
Saturday, May 15, 2010 – More console tags and an electronics lesson

Actually, the electronics lesson comes first. One of the basic equations in electronics is known as "Ohm's Law." It states that V=IR where V is voltage, I is current, and R is resistance. Since each stop action magnet (SAM) on my console has a 30 ohm coil (R) and is driven at 12V, the amount of current each will draw is V/R = 0.4 Amps. Although each SAM has two of these magnets, only one will even be engaged at a time. Hence, the largest number of coils I will ever engage at once is the total number of SAMs, or 165. Therefore, the largest possible total current the combination action will draw is 165 x 0.4 = 66 Amps.

Here you can see the 70 Amp power supply I purchased for the organ. It is so powerful that I had to order it from a company that sells amateur radio transmitters! It weighs close to 50 pounds. Mine is in that box. I unpacked it once to verify it works. Then I packed it again to wait until I need it. SInce it is too heavy to unpack unnecessarily, I included a web photo of the unpacked unit! I will mount this inside the consol - but not until after the grey box is installed and everything else is working.

I want the finished console to look truly professional so I decided to add tags (labels) for the toe studs and expression pedals. I could have purchased these from Arndt - like I did for the labels I have already installed on the bolster. However, these lower tags do not have to look like Wurlitzer replicas. Many theater organs did not even have these.

I found several online sources for plastic tags like this. They care usually called "panel tags" because they are meant for labeling control panels on large electronics gear. Mine come from E. R. Perry Signs Engraving. They have an online order form. I specified the color, text,and size of each tags. I also added comments to define the font I wanted (their "normal" font") and the font size. Remember, these have to be readable from the oran bench. I chose 30 point which is the largest size that fits on the 1/2" tags I ordered.

The tags come by mail service in a few days. Mine cost about $4.00 apiece. Here is the bag of tags which arrived in a soft envelope.

I specified mounting holes for my tags. I bought small screws to match the holes I mounted the toe stud tags over each toe stud directly on the fall board as shown. The upper row is still to be installed in this photograph.

I could not mount the expression shoe tags on the fall board because the Artisan console has a hinged drop-down board that sites about two inches in front of the fall board and extends to just over the swell shoe opening. Swell tags mounted on the fall board would not be visible from the organ bench because of this. Hence I decided to mount these tags on the drop-down board.

I taped some scrap paper on the lower edge of this board and carefully marked the positions of these four tags. I then drilled the holes for them, removed the paper, and screwed them into place.

Here is the console with the bench removed so you can see the newly-installed tags. It definitely adds to the finished look of the console - and may even help guest organists find their way around.

I corresponded with Classic Organ Works this week. They are making good progress on their new "grey box" and I may have mine in a month or so. The really good news is they will likely replace their old control panel (for which I would have had to build a drawer in the console) with a iPad! This is so cool..

 
Tuesday, June 8, 2010 – Adding a music rack

I am still waiting for the "grey box." I decided to add a music rack because no organ is complete without one. The original music rack from the Artisan console is missing. Ken Rosen was nice enough to give be an old Rodgers music rack when I took the console. Ken has tons of organ parts lying around in his studio and I am very happy to have this one. The rack comes from an old Rodgers 33E so it is a more modern style than a typical theater organ rack – which suites this console completely.

I removed the outer cover and carried it to my work room. I placed removable blue tape over the center and the areas that would have to be drilled attaching the music rack brackets. I carefully measured all the positions for the holes and drilled them.

I was a bit worried that the holes might come out right on top of some exiting holes in the cover. In this close up view of the underside of the horseshoe part of the cover, you can see how Artisan cut a groove for wires that connect to several small light fixtures. One fixture went in the rectanglar notch to the very left of the photograph. These seven bulbs provide light for the stop rails. I removed all the old light bulbs and wire, saving them for later just in case. Just as I expected, one hole for each music rack bracket came out right in a light bulb notch! Luckily, there is still about 1/4" of wood so I judged the strength as adequate. The second screw for each bracket goes through the entire 3/4" of the cover. By the way, the shiny material in the notch is a bit of aluminum foil Artisan placed to help direct more light downward toward the stops!
Here you can see the brackets mounted on the console. I will no longer be able to fold the horseshoe part of the cover completely flat on top the console – and I should probably add some protective bumpers. This is a job for later.

Here is the finished music rack in place. I still need to replace the old lighting in the rack with modern solid state bulbs. Since the rack lights shine both upward and downward, they will light most of the stop rail as well. I will only need to replace the outer two stop rail bulbs on either side of the underside of the horseshoe cover to complete the lighting for the upper portion of the console.

Any of you who have been to one of my ragtime piano concerts knows that I usually play from sheet music – unlike most performers. I explain to my audience that I do this "...because I can." Now I can do this on the theater organ, when it actually starts playing of course!