> It begins to oscillate
> around 8.5. at the low end (around 90Hz). Is there any way to get
> it to self-oscillate below that??
That's a limitation of the Moog filter design. Paul worked very hard
to keep that behavior in to maintain the authentic sound.
> While I'm on the subject of swapping resistors. Does anyone know a
> good way to unsolder MOTM PCB's?? They seem to delaminate very
> easily.
The first thing you should ALWAYS do is to cut the component out.
Clip all the legs with a sharp pair of dykes. It's not worth saving
that component worth a few cents (worst case a few dollars) to ruin
your board. Then it becomes much simpler to work on one pad at a
time. I like to heat from one side and use a vacuum sucker from the
other. Properly timed, you can heat the pad just until the solder
liquifies again, then suck the leg out the other side.
Moe