Moog Source Analog Synthesizer SN 2116 Project Machine Minus Panel Membrane

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via this auction

Kind of interesting to see what's under the panel membrane. What's curious is the seller states he drilled the two holes you see.  That leaves the question of how the original membrane connects to the synth engine.  Details via the listing:

"I bought this Source a while ago. It came to me with various parts of the membrane panel not working. All of the analog components work, and I was able to mess around a bit shaping sounds. However, to gain full access to all the parameters, the membrane needed to be replaced.

Instead, I decided to build a whole new switch panel using normal push button switches. However, I’ve come to realize a project like this is more than I have time for. As it sits, it literally just needs a new membrane panel installed. The only modification I did was drill the two holes you see on top of the chassis. This was to be for the wiring harness of the new switch panel. If a new membrane panel gets installed, these holes will not interfere with any membrane switch function.

The only other detail is that the three wooden pieces that surround the keybed need to be reglued in place. They are fully intact, but the original glue had just crumbled when I took apart the board.

For those not in the know - the Source is the closest sounding thing to the original Minimoog! I was pleasantly surprised, when I first messed around with it, at just how accurate that statement really is. It doesn’t have a third oscillator like the Model D, but it does have a dedicated LFO, sequencer, arpeggiator and sample + hold functions!

Obviously, this board is sold as is, AS A PROJECT. I won’t accept and returns or give refunds. Please understand what you’re getting into making this purchase!"