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Old December 26th 07, 02:38 AM posted to alt.binaries.pictures.radio
Unrevealed Source Unrevealed Source is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 142
Default Westinghouse H-104 power supply

The 268V to each plate I understand. What do you mean when you say 265V
"available" on either side of the filament? There is definitely output
from the transformer wired across the filament, but shouldn't that be 5V,
not 265V?

Unfortunately I don't have a working transformer to measure what's going on
with this.

Jeff


"Brenda Ann" wrote in message
...

"Unrevealed Source" wrote in message
...
Looking for help on this one. Am I reading the schematic correctly -
265V across the 5U4 filament, and 268V across the plate? I also notice
that the tap to the pilot lamps is not labeled, although I know from the
parts list that they are 6.3V.

I'm looking to replace the fried transformer, but I'm a bit in over my
head with regard to what to replace it with or whether to have it
rewound.



No. The 268 volts is to each plate and chassis ground, and is AC. The 265
volts is available on either side of the filament, and is the B+ line
going into the first filter.