MOTM

hi hi hi,

   I just finished putting together my *first* kit (assembling the power supply doesn't count), the EG-800.  I plugged my Moog (I'm running it through an Opus 3) into the Gate jack, pressed down a couple of keys and got a terribly distorted and scratchy sound in return.  It was like the envelope was trying to generate the sound, but couldn't.

   I looked over the pcb and the directions and everything seems to be in the right place.

   So I was wondering if the problem might lie in the soldering of the jacks.  Or maybe it lies in the soldering of the pots, I'm not sure.

   I'm terribly new with EE and thought I'd ask you guys for some thoughts instead of spending endless hours trying to figure out what might be the problem.

thanks in advance,

   -Bob K

Bob,

I don't have any experience with Moog equipment, but my understanding that
the trigger/gate signals are not compatible with most other equipment.  MOTM
envelope generators are looking for a 0 to +5V transition for the gate
signal.  You should connect your Opus 3 gate out to a meter or scope and see
what the signal level is when a key is depressed, and when no key is
depressed.

John Loffink
microtonal@...

----- Original Message -----
From: "Bob" <bob@...>
To: <motm@yahoogroups.com>
Sent: Sunday, July 01, 2001 9:48 PM
Subject: [motm] EG-800 debugging question


>
> hi hi hi,
>
>    I just finished putting together my *first* kit (assembling the power
supply doesn't count), the EG-800.  I plugged my Moog (I'm running it
through an Opus 3) into the Gate jack, pressed down a couple of keys and got
a terribly distorted and scratchy sound in return.  It was like the envelope
was trying to generate the sound, but couldn't.
>
>    I looked over the pcb and the directions and everything seems to be in
the right place.
>
>    So I was wondering if the problem might lie in the soldering of the
jacks.  Or maybe it lies in the soldering of the pots, I'm not sure.
>
>    I'm terribly new with EE and thought I'd ask you guys for some thoughts
instead of spending endless hours trying to figure out what might be the
problem.

>
> thanks in advance,
>
>    -Bob K
>
>
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>

Bob, the 800 EG generates only control voltages.  You cannot run audio
through the 800 EG.  You can use the EG control voltage outputs to control
VCAs or VCFs that can be used to process audio.  Just how are you hooking
your 800 to your Opus3 ?

Larry Hendry

----- Original Message -----
From: Bob <bob@...>
To: <motm@yahoogroups.com>
Sent: Sunday, July 01, 2001 9:48 PM
Subject: [motm] EG-800 debugging question



hi hi hi,

   I just finished putting together my *first* kit (assembling the power
supply doesn't count), the EG-800.  I plugged my Moog (I'm running it
through an Opus 3) into the Gate jack, pressed down a couple of keys and got
a terribly distorted and scratchy sound in return.  It was like the envelope
was trying to generate the sound, but couldn't.

   I looked over the pcb and the directions and everything seems to be in
the right place.

   So I was wondering if the problem might lie in the soldering of the
jacks.  Or maybe it lies in the soldering of the pots, I'm not sure.

   I'm terribly new with EE and thought I'd ask you guys for some thoughts
instead of spending endless hours trying to figure out what might be the
problem.

thanks in advance,

   -Bob K





Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/