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Philco 20 voltage
Awon
Junior Member
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Posts: 4
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Joined: Nov 2016
City: Houston, tx
#8

11-11-2016, 08:24 PM
Well I have fixed my problem with the plate voltage on the 71a tubes. It was my fault I will admit it. I had the leads reversed to the speaker. J & D. Voltage is now 220vdc. I still do not have the -50vdc but I don't know if my Meter is just not reading it right since it is a dmm. Checked the pin 6 on the transformer and it's -8vdc. Resistance from the centertap of audio transformer to pin 3 on the 71a is 2.3k and 2.7k. This was the resistance I got before recap. Could this transformer be suspect anyway? Also tubes test good.
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Messages In This Thread
Philco 20 voltage - by Awon - 11-11-2016, 12:15 AM
RE: Philco 20 voltage - by Radioroslyn - 11-11-2016, 08:14 AM
RE: Philco 20 voltage - by morzh - 11-11-2016, 09:10 AM
RE: Philco 20 voltage - by Awon - 11-11-2016, 01:37 PM
RE: Philco 20 voltage - by klondike98 - 11-11-2016, 02:57 PM
RE: Philco 20 voltage - by Radioroslyn - 11-11-2016, 04:09 PM
RE: Philco 20 voltage - by morzh - 11-11-2016, 04:39 PM
RE: Philco 20 voltage - by Awon - 11-11-2016, 08:24 PM
RE: Philco 20 voltage - by Awon - 11-11-2016, 08:38 PM
RE: Philco 20 voltage - by Radioroslyn - 11-11-2016, 10:57 PM
RE: Philco 20 voltage - by NostalgiaRadioTime - 11-13-2016, 11:04 PM
RE: Philco 20 voltage - by Radioroslyn - 11-14-2016, 12:21 AM
RE: Philco 20 voltage - by NostalgiaRadioTime - 11-14-2016, 11:26 PM



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