[TV MAN]

Thanks Rich! I do in fact use Simple Green. It turned out better than expected. I have a bigger ultrasonic and mainly use it to clean carburetors on small engines. It's inexpensive and works pretty good. Thanks for the links Mr. Fix! With the intermittent, I've been thinking about swapping tuner boards - ya know, a little cheating, but after looking more closely at things, I suspect it wasn't lightning, they probably had the same problem and bridged traces. I hope that's the problem. The more I work with it, the more it seems like a "sudden shift" in frequency. Not much, just enough to move the station a little off freq. I can affect it by spraying with chiller, but can't quite pinpoint it. I can touch the osc coil and bring it in - and what I mean isn't moving the coil, but the inductance (or capacitance) of my finger. I've soldered quite a few suspicious connections, but after about 5 minutes or so, still goes off. I'm going to next pull the board and check for any dirty grounds, even though it's grounded through the tuner to the chassis via a soldered wire. I really hope it's not silver mica disease!  Anyway, today is a 'rain day', so I'm going to take another crack at it.

Edit: I wanted to add that Simple Green works good for removing smoke stains and such.