Don't know if it's possible (haven't seen a schemo) but thinking
about the lowering the frequency range of the internal osc, I was
thinking...why not just have an external input that bypassed the
internal osc all together.

This probably isn't possible. Not sure how the quadrature outs
are generated - or if those four elements are redrived from a
single oscillator i there somewhere, or if the only outs of the
internal osc are in quad. If it's the first option, then I would think
that (somehow) and external input could be added.

Then you could run it down to any frequency your heart desired.

You could also run the SAME signal into both ins, which on a
Buchla anyway gives off a very nice effect.

I am assuming this, but I betcha the audio out jack of this unit
was added so they could conform the module to one of their
standard faceplate configurations. It surely ain't gonna be used
much on my system. Perfect place for sticking in an external
input!

daft idea

Dieter, if your listening (taps on microphone) could it

-P