Moog 904A lowpass filter Question

[Joachim Verghese]

Hi,

> I don't remember in which circuit, but I'm quite sure that ARP were so
> bold (and probably so experienced) that they even broke the rule
> of pin 13 being the most negative of the array. In that circuit pin 13
> was slightly more positive than the emitter of another transistor of the
> array, but not so much more positive that a significant current would
> be drawn. Joachim, maybe you remember that circuit ? I only remember
> that we talked about that ...

I recall that conversation, but I don't remember which circuit
it was. I'll look through my archives during the weekend.

> As for ARP's "Moog" filter, maybe the extra diodes were just in there
> to confuse patent lawyers ? Might be worth a thought, given the situation
> at the time ...

Yeah, that's another possibility.

-joachim