[sdiy] Modular Theremin or Heterodyne VCO

[Mrs. Rectangular]

Yes I had read some of the Moog schematics and I was wondering why not just route CV directly from the straight antenna similar to how it is done with the loop antenna instead of using a pitch to voltage converter. What VCO have you found to give you the most theremin like sound? Have you used one that generates its sound from heterodyning? 

--- On Wed, 7/6/11, Harry Bissell <harrybissell at wowway.com> wrote:

> From: Harry Bissell <harrybissell at wowway.com>
> Subject: Re: [sdiy] Modular Theremin or Heterodyne VCO
> To: Synth-diy at dropmix.xs4all.nl
> Date: Wednesday, July 6, 2011, 8:25 AM
> The Moog etherwave theremin makes a
> good controller if you invert the volume antenna
> (essential imho) and do a P/V conversion. I had a circuit
> board for this at one time,
> docs are here
> 
> http://www.modular.fonik.de/Page37.html
> 
> sorry there are no boards left but there were a lot at one
> time, if interested probably someone
> on s-diy has a PCB they'd be willing to sell...
> 
> I've found that sending the pitch to an oscillator and the
> volume to a VCF that can completely cut off the
> oscillator works better than a VCA
> 
> H^) harry
> 
> ----- Original Message -----
> From: Paul Perry <pfperry at melbpc.org.au>
> To: Synth-diy at dropmix.xs4all.nl
> Sent: Wed, 06 Jul 2011 03:03:44 -0400 (EDT)
> Subject: Re: [sdiy] Modular Theremin or Heterodyne VCO
> 
> I used to make a theremin-like device that operated by
> reflected light. If 
> all you want is a way to wave your hand and get a control
> voltage to use 
> with analog gear.
> 
> I don't think it would be practical to build  a
> traditional theremin into a 
> modular system, though some theremins have a CV output.
> 
> Any pitch to voltage converter would allow the audio from a
> trasitional 
> theremin to control analog gear. An MS20 would be ideal
> ;-D
> 
> paul perry Melbourne Australia
> ----- Original Message ----- 
> From: "Mrs. Rectangular" Sent: Wednesday, July 06, 2011
> 4:48 PM
> Subject: [sdiy] Modular Theremin or Heterodyne VCO
> 
> 
> > Hello to all other users of sdiy. I have been reading
> many of the archives 
> > and doing a lot of web searches about several ideas,
> and I just though it 
> > was time to ask...could someone point me in the right
> direction or the 
> > ideal method for setting up a theremin type device in
> a modular format? I 
> > would like to use antennas that create control voltage
> to then plug into a 
> > VCA and a VCO that would employ a heterodyning
> principle.
> > _______________________________________________
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> > Synth-diy at dropmix.xs4all.nl
> > http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> 
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> -- 
> Harry Bissell & Nora Abdullah 4eva
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