Moog ladderfilter (VCF)

[Rick Jansen]

I have just updated the WWW page with the Moog filter.
The schematic is now smaller. Only basic changes are:
- R20 decreased from 68k to 2k2. Else the range of the
filter is a bit limited.
- The addition of D3, to protect the diff. pair against
positive signals.

I'm aware it might be useful to place a capacitor in parallel
to the LM329 voltage ref.

Besides the schematic I have put a gif of the board+components
on the page. The picture is not intended to produce boards
with, just as an idea of how it looks. 

If you want a pcb I can order it for you, they cost me ca. 
Dfl 37,50, which is ca. US$ 22,- without postage.

URL:

  http://www.sara.nl/Rick.Jansen/Emusic/Moog/

Rick Jansen
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rick at sara.nl   http://www.sara.nl/Rick.Jansen
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S&H's a module and s&h's looking good