----- Original Message -----From: korgpolyex800Sent: Monday, March 17, 2008 2:21 PMSubject: [korgpolyex] Moog Slayer mod - questionHi Atom,
I am working on the new aTomaHawk board mod kit and have a question
for you.
Is the only reason you replaced VR2 with a pot so that you could
control VCF cutoff via a knob instead of via the VCF cutoff parameter?
Because it appears to me that providing cut off control via the
existing circuitry will work just fine. The goal is to provide a knob
to control control cut off.
Then, you replaced VR5 so that you could really push the resonance
into self oscillation. That will definitely need a digital
potentiometer put in its place. However, I am wondering why you use a
log pot. I would have thought that the resonance response on the
filter chip would have been linear. And you ground one side which is
completely different to the way the trimmer is set up. Why?
Thanks for your help,
Mike.
Message
Re: [korgpolyex] Moog Slayer mod - question
2008-03-17 by David Mochen
Hi
Just a small note... Atom's great design has been
tweaked a bit by this guy Olaf, who replaced the 50k cutoff pot with a 100k pot
for a broader response. I am using 100k on my Poly and the sweeping range is
very very sweet. You might want to try 50k and 100k for your aTomaHawk board
:)
Of course Mike, you might as well want to add a
switch for toggling on/off MoogSlayer. Olaf did this also via a hardware
switch...
thanks galore
Dave
ps: glad that the aTomaHawk moniker caught on!
:D