[sdiy] FW: altering cv input depths

[Tim Parkhurst]

On Nov 15, 2007 7:17 PM, gregory zifcak <zifcak at hotmail.com> wrote:
>
> whoops, did this not make it to the list either?
> ---------------
> hi,
> i have an arp odyssey, and the modulation depths are just not extreme enough for my tastes. the envelope generators can sweep the VCOs through their entire ranges, but other sources, like the LFO and VCOs, just don't go very far. is it a bad idea to change the 100k summing resistors to 10k or even 1k? the attenuators are 100k.
> thanks for any tips,
> greg
>

Okay, let's try that again (last message was sent too early due to the
cat attempting to sleep on my lap and keyboard).

I don't think I'd reduce the summing resistors THAT much. Why don't
you try tacking another 100k in parallel with the existing resistors?
This gives an effective resistance of 50k, which should double the max
modulation amount. I think this would easily allow you to sweep
the VCOs over the entire audio range. This is also easily reversible
if you want to try another value or even decide you don't like it.
I've got to admit this has never been one of my complaints with the
Ody, but to each his own. BTW, don't use too much heat when soldering
on an Ody. The old single-sided board will lift traces if you're not
careful.

Tim (what else can I blame on the cat...) Servo
-- 
"Imagination is more important than knowledge." - Albert Einstein