RE: [AH] how to trigger korg mono/poly with mc-202?

From Bakis Sirros
Sent Sun, Jul 20th 2008, 20:59

Ok, thanks for the enlightment Florian.
Never had any moog synths, so I am not familiar with the s-trigger
inputs.

Best regards,
Bakis.



Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

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-----Original Message-----
From: Florian Anwander [mailto:redacted@example.com] 
Sent: Sunday, July 20, 2008 9:09 PM
To: Bakis Sirros
Cc: redacted@example.com
Subject: Re: [AH] how to trigger korg mono/poly with mc-202?

Hi Bakis

> Can a Doepfer A165 trigger modifier module be used for this
convertion?
> (from gate out to s-trigger input). 
> Isn't the s-trigger an inverted (and offseted) 'normal' trigger? (I
mean
> instead of going from 0vols to 5 volts, it goes from 5 volts to 0
> volts-ground.
No. S-trigger is simply what the keys of the keyboard do: there are two 
"rails" that are shortened (can be seen very good in the schematics of 
most monophonic moog-synths). You can connect a simple foot switch pedal

to a s-trigger input, and pressing the foot pedal will trigger the last 
played note.

> So this could be done, also, by a voltage inverter (a175) and a +5
volts
> offset voltage added to the inverted voltage afterwards?
> Am I right?
You are wrong ;-)

> I think I remember controlling my monopoly arpeggiator , in the past,
> via an a165... but I am not sure.
The arp-in reacts on a negative slope of a trigger somehow too, but 
depending on the output of the feeding source gear retriggering can 
happen with the positive slope.

Florian

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