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Philco 42-390, code 121 speaker
#3

Thanks for that information. It would appear from the output transformer parts list that the transformer that was originally on the speaker is #32-7968. Year would be 1939. Goes with a push-pull output using two 41 (6k6GT) tubes. A closer examination of the very small print schematic indicates that the speaker is a PM type. The ratio specs for the transformer is 16,000 and 1.25. I assume that this is for the primary and secondary windings. Does this seem reasonable?


Messages In This Thread
Philco 42-390, code 121 speaker - by Stevelog - 11-20-2024, 12:07 PM
RE: Philco 42-390, code 121 speaker - by GarySP - 11-20-2024, 06:24 PM
RE: Philco 42-390, code 121 speaker - by Stevelog - 11-20-2024, 07:21 PM
RE: Philco 42-390, code 121 speaker - by Stevelog - 11-26-2024, 02:57 PM
RE: Philco 42-390, code 121 speaker - by morzh - 11-26-2024, 05:18 PM
RE: Philco 42-390, code 121 speaker - by Stevelog - 11-26-2024, 06:39 PM
RE: Philco 42-390, code 121 speaker - by morzh - 11-26-2024, 08:38 PM



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