Westinghouse H-303P4,

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Westinghouse H-303P4,

Eric
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Posts: 450
Threads: 84
Joined: Nov 2011
City: Cumming, GA

07-15-2019, 04:34 PM

You might be on to something, I only get .980 volts on the 1R5 filament. Now I changed out the selenium rectifier and have a 100 ohm 5w ceramic for a dropping resistor if I raise the variac to it's max about 135 ac I get 150vdc (calls for 140v after the rectifier) between R16 and R3 seems like that should be enough but I only get 1.07vdc across pins 1&7.

Now I hooked up a power supply from AES I get 88vdc on the "B" battery and 4.5vdc on the "A" battery and I can adjust the "A" to get 1.4v on 1R5 but still nothing except static? where to go?

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Messages In This Thread

Westinghouse H-303P4, - by Eric - 07-15-2019, 02:31 PM

RE: Westinghouse H-303P4, - by Radioroslyn - 07-15-2019, 03:03 PM

RE: Westinghouse H-303P4, - by Eric - 07-15-2019, 04:34 PM

RE: Westinghouse H-303P4, - by Radioroslyn - 07-15-2019, 04:47 PM

RE: Westinghouse H-303P4, - by Eric - 07-16-2019, 03:11 PM

RE: Westinghouse H-303P4, - by Radioroslyn - 07-17-2019, 06:26 PM

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