[sdiy] CMOS CD4070 ring mod?!

[Fahl, Romeo]

I've got a dirty scan of the 4070 based pulse width multiplier.  It's a
pretty neat module.  Built it a few years ago.  It can do anything from
super-electrified distortion to swooshey-phasey type stuff.

http://www.spiritone.com/~8brain/schems/CAPWMult.gif


-----Original Message-----
From: Tim Escobedo [mailto:tpe123 at yahoo.com]
Sent: Thursday, December 27, 2001 12:53 PM
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] CMOS CD4070 ring mod?!


Craig Anderton had an interesting module on an old issue or
Polyphony... a module utilizing several votage controlled EXOR gates
with individual patchable inputs/outputs. IIRC, It wasn't too
complicated, utilising a 4070 and several comparators. I don't recall
what it was called.

--- Scott Gravenhorst <music.maker at gte.net> wrote:
> =?iso-8859-1?q?Ken=20MacBeth?= <macbeth2600 at yahoo.co.uk> wrote:
> >An interesting real basic square driven ring mod is a
> >single exor(4070)gate, two squares fed to the inputs
> >and the result is a ring-mod like effect! It would be
> >interesting to link all four gates together...
> 
> Are you gonna do it?  I'd like to do that sometime...
> I can imagine it might be cool with PWM as input(s).

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