[sdiy] CV-vactrol circuit
rburnett at richieburnett.co.uk
Sat Jul 4 01:18:30 CEST 2015
Digital pots sound like a better idea to me. If you add a low-end
micro-controller you can have the choice of either CV control or MIDI
Sent: Friday, July 03, 2015 11:46 PM
To: Synth-diy at synth-diy.org
Subject: Re: [sdiy] CV-vactrol circuit
On Fri, Jul 03, 2015 at 08:58:51PM +0000, niroke at tampabay.rr.com wrote:
> I'm trying to add external control to my TR-9090's voice parameters, and
> I'm sure if that was as simple as patching in to a CV summing point, it
> would have been done by now. The 909 circuits don't lend themselves to
> voltage control. From what I know, I can control the parameters with a
> vactrol in series with the variable resistor. If you have a better
> solution, I'm eager to hear it!
You could try digital pots, maybe? Does it *have* to be a control voltage?
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