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Old 09-05-2014, 06:04 PM
Kamakiri's Avatar
Kamakiri Kamakiri is offline
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The tube is correct according to the sticky label on the top and on the bottom of the chassis. I measured voltage topside....all I did was bring the tube very lightly up out of the socket, just enough to get meter probes in there. And the socket pins are numbered

Suppose I could prop the set up and measure from underneath, but right now my son Nick and I are finishing up the Admiral 10"
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Old 09-05-2014, 07:09 PM
old_coot88 old_coot88 is offline
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Why dontcha try this:
With the set off, remove the tube. Working from the top side of the chassis, stick the meter from ground into lug 5. It should show zero ohms, indicating solid continuity thru the socket to ground.

Do the same thing to lug 4. It should show nearly zero, a small fraction of an ohm (from the paralleled tube heaters and heater winding, to ground).

If you get an open on either lug, that'll show you which track to pursue to find the open condition.

I suspect this fault is why the project was abandoned.
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