[sdiy] Experimental VCA RFC

[Jerry Gray-Eskue]

I may have to breadboard it to find out. 

I can get data out of the simulation but I am getting some strange stuff when I try to massage/clean up and load it into a WAV capable editor, it may take a while dinking with it to get that to happen.

-----Original Message-----
From: Dan Snazelle [mailto:subjectivity at hotmail.com] 
Sent: Friday, March 18, 2011 1:41 PM
To: René Schmitz
Cc: Jerry Gray-Eskue; synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] Experimental VCA RFC

How does it sound????




Sent from my iPhone

On Mar 18, 2011, at 11:29 AM, René Schmitz <uzs159 at uni-bonn.de> wrote:

> 
> Hi Jerry,
> 
> Interesting concept. How does the output signal look like waveform-wise. I.e. how much distortion? Offsets?
> 
> I would have thought that such a circuit could work as a switch/gate but not for proportional control.
> 
> What you should be aware is how much reverse voltage the C-E of your opto can stand. Sometimes only 5-6V. Which would be your maximum amplitude.
> 
> As others have pointed out you can linearize the control by a servo loop.
> 
> Cheers,
> René
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