Modular Synth Panels

On 7/6/08, Samppa Tolvanen put forth:
>On 7/5/08, Mark <yahoogroups@...> wrote:
>  >
>  >  Are there any modules that use such pots??
>  >
>
>Maybe there WOULD be, if these were commonly available?

Possibly, but as awesome as Bridechamber is, I doubt anyone is going
to design or re-design modules just because Scott has a certain part
available :)

>This thing is simplest thing ever to expand Your synthesis
>possibilities. With a simple dual inverting opamp buffer, it provides
>anything between the original signal and the inverted signal with true
>null in the middle. You maybe lose half the scale pot gives (if You
>use dedicated inverter ect.).

While I agree that reversing attenuators are useful, and I have them
in several places in my modular, they do not require a center tap.
(Btw, it doesn't require a dual op-amp.  The MOTM-440 does it by
putting the pot in the feedback path of a single inverting amp).

The reason I mentioned the Blacet Time Machine is that afaik the
regen function uses a center-detent pot in Blacet format.  Its input
is hardwired into the circuit, so you just can't pull the plug if you
want no input.  Although it doesn't have a center tap, and I don't
know offhand if one would work.