01-31-2020, 12:24 AM
First, a thank you to Ron for his wonderful, well illustrated, and informative thread on how he restored a 37-640. It is going to be of GREAT help. Tonight I began to work on the tuning section. What an almighty BLIVIT ! I have the front and middle plates removed and wires and caps replaced, as well as the 2 resistors on the front plate which were WAY over tolerance. Thankfully the mica caps are OK, and I don't have to replace those, which would mean even more intricate surgery than I really want to do. That just leaves the rear plate, which won't be too bad. The front plate is the worst.