10-02-2013, 08:24 PM
Hi guys,
I've been reading discussions but this is my first post.
I am restoring my first, a 37-89 that has been in the family since new. I have replaced resistors, all tubes with tested replacements, and capacitors (except micas). I had hoped for music but no luck.
I found I wasn't getting voltages on tube sockets. I opened the transformer and found wires had insulation falling off. I spliced each as close to the winding as I could and covered splices with heat shrink. Still nothing but hum.
What should the voltages from the transformer be? The transformer is Philco 32-7583 (with the rectifier 5Y4G on top).
Note: the rectifier tube had been replaced with a 5V4G and I bought a 5Y4G and replaced it. Are the pins the same? Should I suspect the socket has been rewired?
Any help or suggestions will be greatly appreciated, Herb
I've been reading discussions but this is my first post.
I am restoring my first, a 37-89 that has been in the family since new. I have replaced resistors, all tubes with tested replacements, and capacitors (except micas). I had hoped for music but no luck.
I found I wasn't getting voltages on tube sockets. I opened the transformer and found wires had insulation falling off. I spliced each as close to the winding as I could and covered splices with heat shrink. Still nothing but hum.
What should the voltages from the transformer be? The transformer is Philco 32-7583 (with the rectifier 5Y4G on top).
Note: the rectifier tube had been replaced with a 5V4G and I bought a 5Y4G and replaced it. Are the pins the same? Should I suspect the socket has been rewired?
Any help or suggestions will be greatly appreciated, Herb
