02-16-2020, 02:33 PM
Well, I think I’ve fussed and worried This Old Radio enough that its’ now working; but there’s alway a but. Shadow meter is open, so I added a 1.2k resister in it’s place; the tone control now works somewhat, and I re-crimped one of the coil cans that was loose causing noise (you can reach up underneath with a needle nose pliers).
Voltage seems to be high- for example K to P on output 42 tube is 315 instead of 235 VDC. I can bring it down to 235 with the Variac, at 75%. Electric service to the house measures 119 to 120 VAC......I’m inclined not to worry about it, but should I?
I still need to align it properly.
-Simon
Voltage seems to be high- for example K to P on output 42 tube is 315 instead of 235 VDC. I can bring it down to 235 with the Variac, at 75%. Electric service to the house measures 119 to 120 VAC......I’m inclined not to worry about it, but should I?
I still need to align it properly.
-Simon
