[sdiy] MG-1 Mods (patching it out)

[mmanard at columbus.rr.com]

I'm not sure what you mean. A diode off pin 7? Will that remove 
the .5v? Will it affect the output of the EG in other ways?

- Michael nil-x

----- Original Message -----
From: phillip m gallo <philgallo at attglobal.net>
Date: Friday, July 1, 2005 1:35 pm
Subject: RE: [sdiy] MG-1 Mods (patching it out)

> One quick a dirty way is a series diode.
> 
> regards,
> p
> 
> 
> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of
> mmanard at columbus.rr.com
> Sent: Friday, July 01, 2005 4:38 AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] MG-1 Mods (patching it out)
> 
> 
> I have a second Moog Mg-1 and the keys and sliders are all but
> destroyed, but otherwise it works. I'm going to put it behind a new
> panel/case and mod as much as I can think of possibly patching it out.
> I'm thinking of adding an ADSR and an Analog Noise (white/pink/low
> freq) from the asr-1 schem.
> 
> Anyways to my question:
> I still want to use the AD(R) generator onboard too but I've found a
> small issue. The output on the EG is never 0v - it is always about .5v
> which is fine for most mod routings but I wanted to route it to the
> OSC2 freq which makes it slightly go sharp. Any ideas how to correct
> this?
> 
> I'm getting the EG output from Pin 6/7 of U13.
> 
> Here's the schematic:
> http://www.geocities.com/gallomagnetix/mg1_control.jpg
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