Quoted from cottonm4:I may have found a replacement pot that will work. It has the correct values but is does not have a long shaft adjuster. I ordered 3 of them since they were cheap. I should have them in a week. I hope it works.
I received my replacement potentiometer and have made the swap. The good news is that the replacement pot works. The bad news is that my sounds, or lack of sounds still exist. I am going to recap the sound board and hope that helps. I hope my sound board is not blown. There is no replacements on the market. And Ebay units that are "untested" are selling for $200.00.
Onward: The pot. You are looking for a 10K LOG pot. What that means: 10K lets you make close mi-nute sound loudness adjustments. If you use a 100K replacement just the slightest twist of the knob will blast out your brains; In other words, you will struggle to dial in the loudness you want.
Now, about LOG. There are linear pots and logarithmic pots. Another name for LOG pots is Audio pots. So, for sounds , for audio, for music, you want an audio pot.
This is the animal. It is a double-gang pot. The one I found at
https://www.parts-express.com/search?keywords=023-646 cost $2.54.
Shipping was more than the part so I bought 3 (you all know how that works).
For a work bench, I screwed the bottom of the box the pot lives in to the prop stick support wood on the cab. Even with my jury rig work bench, a third hand to help hold parts in position would have been nice.
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The 2 left contact lugs are the ground lugs and they are wired with one resistor to both lugs.
Then you have 4 more wires: red and black on the lower stack. And green and white on the upper stack.
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I bought a 3 foot section of hobby store/hardware store aluminum tubing and cut a short length and bonded it to the pot control shaft with some Gorilla Glue and now I have a long adjustment "handle" like the original.
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