VCA experiments (was: Transistor matching)

[Joachim Verghese]

On Mon, 9 Dec 1996, Haible_Juergen#Tel2743 wrote:

> It is quiet. I connected it to a 2040 filter with low cutoff setting:
                                   ^^^^^^^^^^^
Lucky you.... ;)

> No noise. Opening the master faders on the desk all the way
> up: still almost no noise. In comparison, my OB-8 produces
> a lot of noise with the filter closed and the VCA open.

Did you use audio or general purpose transistors?

> So expect a polysynth that has a Filter Mode knob like
> the Obie SEM,...
> Under voltage control !

Sounds promising!

-joachim