Resistor Part Number - Printable Version

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+--- Thread: Resistor Part Number (/showthread.php?tid=12294)

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Resistor Part Number - HOTWIRE - 05-17-2015

Hi All.

Anybody know what value (Ohms & Watts) Philco part number 33-1177 is.

Regards.

Will.

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RE: Resistor Part Number - Radioroslyn - 05-18-2015

So where would this resistor be used???
Terry

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RE: Resistor Part Number - sam - 05-18-2015

will
please list radio model and schematic for help
sam

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RE: Resistor Part Number - HOTWIRE - 05-18-2015

Thank you for your replies Guys.

Its a philco 640B Aka philco98 export.  See Here.
http://www.philcoradio.com/phorum/showthread.php?tid=5299

Ron sent me a copy of philco service bulletins some time ago and No 221 suggests changing resistor 6650 (20K) for part number 33-1177.

I have returned to this set after a while away from it  (been busy with work in this recovering economy) and found that the voltages are all over the place, also broadcast band is silent.   So in my wanderings around the circuit this popped up.

Regards.

Will.

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RE: Resistor Part Number - Radioroslyn - 05-19-2015

Hi Will,
I would suspect that 20K is OK as it's mentioned in the service notes. If you are finding hard to get the voltage readings I would start at the power supply to be sure that the output is what it should be. Without that baseline you'll be chasing your tail trying to get to work. After the power supply then the audio stages.
GL Terry

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RE: Resistor Part Number - sam - 05-19-2015

hotwire
I fixed your link so we can follow along
sam

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RE: Resistor Part Number - Radioroslyn - 05-19-2015

Tnx Sam,
 I opened it but didn't know where it was going...
Terry

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