I have been working on restoring a Philco 91 radio and have run into a problem I just can't figure out ??? I have gone over the radio and recapped it. When I got the radio the original BC resistor had been removed and been replaced with individual resistors. This is a single speaker model by the way. Anyway, I made my own resistor out of 25 watt individual resistors because I didn't like how the repair had been done and one section looked very bad. The resistor value is 900/2700/95/205 Ohms. Upon slowly powering up the radio I noticed the 2700 ohm section appears to get too hot. The screen grids on the RF/Det/IF tubes is also way too high...155 volts instead of 50/80/85...from what I can see from the schematic I have this is fed from this resistor....If anyone has any suggestions I would be happy to try them !!

Thanks, Mark

Mark

I left a comment on ARF. Believe the 900 ohm resistor should be 9000 ohms. 900 in series with 2700 is too low be across the power supply.

Norm

:I have been working on restoring a Philco 91 radio and have run into a problem I just can't figure out ??? I have gone over the radio and recapped it. When I got the radio the original BC resistor had been removed and been replaced with individual resistors. This is a single speaker model by the way. Anyway, I made my own resistor out of 25 watt individual resistors because I didn't like how the repair had been done and one section looked very bad. The resistor value is 900/2700/95/205 Ohms. Upon slowly powering up the radio I noticed the 2700 ohm section appears to get too hot. The screen grids on the RF/Det/IF tubes is also way too high...155 volts instead of 50/80/85...from what I can see from the schematic I have this is fed from this resistor....If anyone has any suggestions I would be happy to try them !!
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:Thanks, Mark
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