Model 52 voltage issue

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Model 52 voltage issue

Radioroslyn
Phorum Expert

Posts: 7,285
Threads: 268
Joined: Dec 2009
City: Roslyn Pa

06-24-2017, 01:09 PM

Hi Pear and Welcome,
Sounds like #1 ( 1/2 of the volume control) or #34 is open. Simple test is measure the resistance from the cathode to chassis gnd, should see with volume control full up abt 250 ohm. Set unplugged of course.
http://www.philcoradio.com/images/phorum/schem/51.jpg

GL
ps Didn't read your full post to answer your question Yes it's a very good possibility. Under normal conditions a shorted tube wouldn't deliver HV to the cathode w/o either showing a low plate voltage or smoking the cathode resistor. In your case the cathode circuit is open.

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

(This post was last modified: 06-24-2017, 01:25 PM by Radioroslyn.)

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Messages In This Thread

Model 52 voltage issue - by Pear - 06-24-2017, 11:49 AM

RE: Model 52 voltage issue - by Radioroslyn - 06-24-2017, 01:09 PM

RE: Model 52 voltage issue - by klondike98 - 06-24-2017, 01:25 PM

RE: Model 52 voltage issue - by Pear - 06-25-2017, 03:10 PM

RE: Model 52 voltage issue - by Arran - 06-25-2017, 04:08 PM

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