Re: '62 Tremolux nasty oscillation on power up

I've been meaning to reply to this last week, but forgot.

After restoring the 820 NFB dropping resistor to 100k, I still got
oscillation. At this point, it just didn't make sense why the amp
still oscillated. So I tried something that in my mind was crazy: I
swapped the primaries on the OT.

Oscillation is gone!

Yes, I know many of you are rolling your eyes now. But I followed the
MM wiring diagram and the official Fender layout diagram wrt the wire
colors on the respective plates. I guess somebody at Mercury Magnetics
was winding that output transformer at 4:50pm on a Friday...

Needless to say, the amp is sounding great. Probably the best it's
sounded in 35 years, given the datestamps on all the previous
components the "butcher" put in.

Thanks again for your help. I learned a lot.
.

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