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Joined: Jul 2024
City: Binghamton
State, Province, Country: NY
I'm in the process of restoring a model 90. The BC resistor started to smoke when powered up. Not the whole thing, just the last section right to left. I'm not sure if the whole thing needs to be replaced or just that section. Looking for guidance. Thanks Allan
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Joined: Apr 2023
City: Roanoke
State, Province, Country: Virginia
As a rule resistors don't burn up for no reason. You need to diagnose what caused it to burn up.
BTW, there are three basic varieties of 90 - which output tubes do you have?
Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA
https://plymouthcolony.net/starcity/radios/
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City: Roslyn Pa
Hi and welcome to the Phorum,
Agree w/Dale. If you can check the resistance of the smoldering section you may find that the resistance value is OK. If so I wouldn't replace, general wire wound resistor are pretty hearty and can take some abuse. But figure out the cause.
Early models P/P 45's, mid model single 47, late model P/P 47's.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
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City: Binghamton
State, Province, Country: NY
I response to your question of what version I'm working on...it's the model with 2 #45 tubes.