770 filter (was: Re: [sdiy] 4 Pole state-variable filters)

[Theo]

Diode ring and a one transistor to generate the positive 
and negative CV and do the expo thingy.
However this clever one tranny setup looked to my like 
massive CV feed trough. So I didn't try but used the MS50 
method with 2 opamps for the pos. & neg. CV and diodes 
for the expo instead.

Theo


----- Original Message ----- 
From: jhaible <jhaible at debitel.net>
To: Theo <t.hogers at home.nl>; <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, February 10, 2002 11:05 PM
Subject: 770 filter (was: Re: [sdiy] 4 Pole state-variable filters)


> > I also got good results by cascading two Korg 770 style filters.
> 
> This is one I haven't seen yet.
> Vactrols or diode rings ?
> 
> JH.
> 
> 
> 
>