Moog Music Forum

About new bushings: they can run a little wide, which makes them stick to the key channel. You can widen the channel a little, but it might still bind at the bottom of the key travel. I've taken a little off each bushing with a belt sander to make them fit.
The original bushings were coated with a ...

So, sure enough, Moog's own Mini plugin exhibits reversed ramps too. So does Cherry's plug. Osc 3 mod is per graphic as is the hardware.
I think that there is nothing wrong with your '75.

According to the schematic (old boards) each oscillator has downward going ramps. 0V top down to -4V bottom. My 1974 Mini exhibits this too. Osc 3 as mod source is correct though.

The closest extant item is the Davies 1216 at Mouser...

Hi Bob, I've tried to PM you but looks like it's not sending --
I'm interested in a couple ua726's. Thanks!

Hi everybody, I've stumbled across a bunch of NOS 50K log Allen-Bradley pots, required for mod wheel pot replacement on the original Model D's. There is a good description of mod pot replacement issues, by Kevin Lightner, on this forum. If there is interest, I would like to make these available at ...