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36-650 restoration
Bill Bacco
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Posts: 94
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Joined: Feb 2013
City: Monroeville, PA
#4

02-13-2024, 01:38 PM
I noticed that the voltages on the Plates of most of the tubes are any where from 50 to 100V higher than the schematic lists.
I also noticed that the Shadow meter is pegged to one side and that there is about 40V across it.

The voltage out of choke (part #79) after the Rectifier (80) is at 303V.

All of the paper and electrolytic caps have been replaced.
Does anyone know if the schematic (attached) is correct?

It could be a resistor issue, there are a couple that seem to be quite a bit out of tolerance.

Any other thoughts are appreciated.

Thanks, Bill


Attached Files
.pdf Philco Service Bulletin 220.pdf Size: 2.65 MB  Downloads: 78
(This post was last modified: 02-13-2024, 01:39 PM by Bill Bacco.)
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Messages In This Thread
36-650 restoration - by Bill Bacco - 02-12-2024, 02:12 PM
RE: 36-650 restoration - by klondike98 - 02-14-2024, 06:17 PM
RE: 36-650 Alignment - by RodB - 02-13-2024, 10:59 AM
RE: 36-650 Alignment - by Bill Bacco - 02-13-2024, 01:25 PM
36-650 High Plate Voltages - by Bill Bacco - 02-13-2024, 01:38 PM
RE: 36-650 High Plate Voltages - by morzh - 02-13-2024, 04:19 PM
RE: 36-650 High Plate Voltages - by Bill Bacco - 02-13-2024, 04:48 PM
RE: 36-650 Alignment - by morzh - 02-13-2024, 04:24 PM



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