04-29-2021, 05:01 PM
Chas,
Your right lucky find. When I saw them would have bet both were duds. Then at least I'd have something to stuff new transformers in. When I found both were good couldn't believe my good fortune. Carefully exposed stranded wires, fanned out the strands and cleaned them up using a small steel brush in a variable speed dremel. New wires are now soldered in place and they both still check good.
Another spare part that came in was the rheostat plate. Originally both rheostats checked unstable readings from k ohms to meg ohms. Found they were easy to disassemble. Cleaned all contact points with 1500 grit sandpaper, sprayed out with contact cleaner, then air dried. Now both have min of .6 ohms and a max of 9.8 ohms. Smooth control now. On/off switch got same treatment. It was nice learning on a spare, somewhat prepared when I do the same with the one installed on the radio.
Your right lucky find. When I saw them would have bet both were duds. Then at least I'd have something to stuff new transformers in. When I found both were good couldn't believe my good fortune. Carefully exposed stranded wires, fanned out the strands and cleaned them up using a small steel brush in a variable speed dremel. New wires are now soldered in place and they both still check good.
Another spare part that came in was the rheostat plate. Originally both rheostats checked unstable readings from k ohms to meg ohms. Found they were easy to disassemble. Cleaned all contact points with 1500 grit sandpaper, sprayed out with contact cleaner, then air dried. Now both have min of .6 ohms and a max of 9.8 ohms. Smooth control now. On/off switch got same treatment. It was nice learning on a spare, somewhat prepared when I do the same with the one installed on the radio.
