Allison,
Did you reduce the gain on the amp's driver and pre-driver stages when
adding the MMIC stage?
The power amp stages are serpentined in there pretty tight, I can believe more gain
at RV1 will couple into Q92,93,96,97 so as to create an oscllator.?
Yes, the whole thing needs a re-think.
But other than adding external LPF's (or hacking the existing relay scheme),
I'm wondering if there are any other easily performed improvements
that owners of v3 and v4 boards can do.
Jerry
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On Wed, Aug 22, 2018 at 07:35 AM, ajparent1/KB1GMX wrote:
As to adding the 10db mimic I tried that... helps but the amp it self became
more unstable.? ?
