[sdiy] Buchla 191 Sharp Cutoff Filter

[mark verbos]

It's not Vactrols. It uses transistors.



Mark




On Apr 16, 2008, at 7:11 PM, Aaron Lanterman wrote:
> Anyone know what's in the guts of the sharp cutoff filter - i.e.  
> what topology, are vactrols used, etc? I was sort of surprised to  
> see a 4-pole Buchla filter!
>
> I don't see the schematics on Magnus's site, and his is the most  
> complete collection out there, so I'm guessing this is a rare beast?
>
> - Aaron, currently going through a Buchla obsession
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