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Philco 37-670 restoration thread
Arran
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#12

12-31-2014, 03:54 AM
 Sounds like the pin-out of a 5X4 is like that of a 5Y4, so 7-8 for the filament. I would not make the assumption that whomever put the 5U4 in there knew what they were doing, anybody can stuff a tube in a socket.
Regards
Arran
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Messages In This Thread
Philco 37-670 restoration thread - by Diverted - 12-30-2014, 02:55 PM
RE: Philco 37-670 rectifier - by millievolt - 12-30-2014, 03:25 PM
RE: Philco 37-670 rectifier - by Diverted - 12-30-2014, 04:03 PM
RE: Philco 37-670 rectifier - by Chuck Schwark - 12-30-2014, 03:28 PM
RE: Philco 37-670 rectifier - by millievolt - 12-30-2014, 03:33 PM
RE: Philco 37-670 rectifier - by morzh - 12-30-2014, 05:27 PM
RE: Philco 37-670 rectifier - by Diverted - 12-30-2014, 06:45 PM
RE: Philco 37-670 rectifier - by OZ4 - 12-30-2014, 07:14 PM
RE: Philco 37-670 rectifier - by Diverted - 12-30-2014, 07:35 PM
RE: Philco 37-670 rectifier - by OZ4 - 12-30-2014, 08:10 PM
RE: Philco 37-670 rectifier - by thirtiesradio - 12-31-2014, 02:44 AM
RE: Philco 37-670 rectifier - by Arran - 12-31-2014, 03:54 AM
RE: Philco 37-670 rectifier - by Diverted - 12-31-2014, 08:03 AM
RE: Philco 37-670 restoration thread - by John R - 12-31-2014, 04:19 PM
RE: Philco 37-670 restoration thread - by OZ4 - 12-31-2014, 12:03 PM



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