Quote:
Originally posted by Jeffhs
That component is a fusible resistor. These are wirewound and were often used in old radios/TVs as filament and/or B+ dropping resistors. They worked on the same princple as fuses--if there was a short in the filament circuit or B+, the fusible resistor would blow and open the circuit immediately, as would a fuse in the same position. The burned spot on yours indicates the part is defective.
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Well, the filaments in the rest of the set light up so unless there are two filament circuits, that's OK. That leaves the B+ circuit. I'll take a look at what tubes it uses. I know I have a tube tester around here. There is also an old black paper covered cap that might be suspect.
Thanks for the component ID! Now where can I get a replacement or two since I'll probably blow one or two before it gets better?