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Vintage Synth Repair

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Thread

moog prodigy. .

moog prodigy. .

2005-08-25 by robert andrew scott

I recently purchased a moog prodigy (without the keyboard). . so, it 
has a CV-in and trigger in.

I've tried controlling it with the Korg Mono/Poly (which also uses 
V/Oct scaling) and it did not seem to trigger the Prodigy. . OR the 
Prodigy just refuses to produce sound..

I can make the Prodigy play sounds by tapping knobs or flicking the 
face of the unit. . I assume something connection is lose or bad.

Any ideas?

Thanks!
-r scott

Re: [vintagesynthrepair] moog prodigy. .

2005-08-25 by Jez

Won't work from a Korg - Korgs are Hz per octave and Moogs are volts
per octave, so you've got the wrong control voltage coming in to the
CV.

Also, Moogs use a sort of inverse trigger, (S-Trig) so they respond to
the gate/trigger differently.

I did once link up a prodigy to "play" from a Roland SH101. It did
work, but was not entirely satisfactory.

If you have a decent MIDI-CV interface box, it should allow you to
select CV and trigger type.
Show quoted textHide quoted text
On 8/25/05, robert andrew scott <quiet_channel@...> wrote:
> 
> I recently purchased a moog prodigy (without the keyboard). . so, it
> has a CV-in and trigger in.
> 
> I've tried controlling it with the Korg Mono/Poly (which also uses
> V/Oct scaling) and it did not seem to trigger the Prodigy. . OR the
> Prodigy just refuses to produce sound..
> 
> I can make the Prodigy play sounds by tapping knobs or flicking the
> face of the unit. . I assume something connection is lose or bad.
> 
> Any ideas?
> 
> Thanks!
> -r scott
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
>

Re: [vintagesynthrepair] moog prodigy. .

2005-08-25 by Tom Remi Flygel

As far as I know, the only synths the Korg's can interface with are the Yamaha CS-series.
Korg uses a Hertz/Octave system instead of 1V/octave that Moog uses.
I have a Korg MS-10 that controls my Yamaha CS-5 perfectly, actually they're married, as the MS-10 keyboard doesn't work. And together they become a big 2VCO, 2 VCF synth with massive sound.
There is a full explanation of the two different CV systems here :
I suggest you read, it's nice to know for future use. It's too complicated to go into here. :)
Actually there are several more "standards" certain manufacturers use that differ from their competitors, heaven knows why. Some go with 1.8V/Octave etc.
-Tom-
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----- Original Message -----
Sent: Thursday, August 25, 2005 8:31 AM
Subject: [vintagesynthrepair] moog prodigy. .


I recently purchased a moog prodigy (without the keyboard). . so, it
has a CV-in and trigger in.

I've tried controlling it with the Korg Mono/Poly (which also uses
V/Oct scaling) and it did not seem to trigger the Prodigy. . OR the
Prodigy just refuses to produce sound..

I can make the Prodigy play sounds by tapping knobs or flicking the
face of the unit. . I assume something connection is lose or bad.

Any ideas?

Thanks!
-r scott



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