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Philco 49-909
#7

Ordered a new volume control to replace the bad one.

I have a question, if I replace the 117Z3 rectifier tubes (2) with a 1N4007 diode & resistor, will I have to strap pin 3&4 the heater pins. It looks to this may not be necessary because they are not in the series with the other tube heaters?

What do you think?

Jim
Spring Lake MI


Messages In This Thread
Philco 49-909 - by Jimradio - 04-21-2021, 01:48 PM
RE: Philco 49-909 - by mikethedruid - 04-21-2021, 09:09 PM
RE: Philco 49-909 - by Jimradio - 04-22-2021, 06:25 AM
RE: Philco 49-909 - by Jimradio - 04-22-2021, 07:18 AM
RE: Philco 49-909 - by mikethedruid - 04-22-2021, 10:23 AM
RE: Philco 49-909 - by Jimradio - 04-22-2021, 01:36 PM
RE: Philco 49-909 - by Jimradio - 04-29-2021, 10:05 AM
RE: Philco 49-909 - by Radioroslyn - 04-29-2021, 05:33 PM
RE: Philco 49-909 - by OZ4 - 04-29-2021, 06:10 PM
RE: Philco 49-909 - by Jimradio - 04-30-2021, 07:06 AM
RE: Philco 49-909 - by Jimradio - 05-02-2021, 07:26 AM
RE: Philco 49-909 - by RodB - 05-02-2021, 09:02 AM
RE: Philco 49-909 - by Jimradio - 05-02-2021, 07:35 PM
RE: Philco 49-909 - by Jimradio - 05-15-2021, 04:44 PM
RE: Philco 49-909 - by OZ4 - 05-15-2021, 06:53 PM
RE: Philco 49-909 - by Jimradio - 05-17-2021, 07:04 AM



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