[sdiy] Moog Filter Problems

[Oren Leavitt]

On 9/6/2011 1:14 PM, Oren Levy wrote:
> Hey,
> I am trying to fix a Moog Source who's filter is acting funky. It seems that the filter is acting like a 2dB/Octave instead of the infamous 24. What could be causing this problem?
> Thanks,
> Oren
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Do I detect another Oren?!?

Hard to tell without more details.
Intermittent solder connection, or contamination (i.e. battery leakage), 
on the board maybe?
It's been a number of times I've fixed mystery problems by simply 
reheating (reflowing) the PCB solder connections.
I really can't think of much else that would break the Moog ladder filter.

- Oren