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46-480 Burned Resistor
Jbaker
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Posts: 31
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Joined: Nov 2010
City: Woodbury, MN
#1

11-24-2010, 11:30 PM
I have a 46-480 radio that I have been working on for a while. When I got the radio, it did not work and I found a burned up resistor. In the Philco service manual it is R308 and R17 in the schematic published by Rider. The value is 1K and it looked like a 1/4 watt size. It was replaced with a 1 watt resistor. The radio was completely recapped and the tubes tested. I can tune in AM stations but the resistor gets very hot and starts to smell after a minute or 2. The radio also motorboats if I turn the volume up too high.

Any thoughts on what could be causing the resistor to continue to burn up?

Thanks in advance for any advice.
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Messages In This Thread
46-480 Burned Resistor - by Jbaker - 11-24-2010, 11:30 PM
Re: 46-480 Burned Resistor - by rghines1 - 11-25-2010, 10:32 AM
Re: 46-480 Burned Resistor - by codefox1 - 11-25-2010, 10:52 AM
Re: 46-480 Burned Resistor - by Jbaker - 11-25-2010, 04:53 PM
Re: 46-480 Burned Resistor - by rghines1 - 11-25-2010, 06:54 PM
Re: 46-480 Burned Resistor - by Jbaker - 11-26-2010, 05:30 PM
Re: 46-480 Burned Resistor - by rghines1 - 11-27-2010, 10:51 AM



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