Tau Systems 1010 Filter

[Terry Michaels]

Message text written by Martin Czech
>Yes, as somebody pointed out, you have to replace the ladder rungs (which
are C in the Moog LP) with a resistive element and the trannys with Cs.
Doing this straight forward causes Problems, 8 Caps, and the resistive
element isn't differential any more, how to bias ? 
So the resistive element is split up into a PNP to one rail and a NPN
to another rail, and only 4 caps couple the resistive element knots. The
original moog modular schematics are on the web (music machines, I think).
<

Hi Martin:

Actually, there might be another way to make a high pass.  Replace the
capacitors in the Moog ladder array with inductors.  Never tried it myself,
though.

Terry Michaels