Quote:
Originally Posted by vts1134
I'm in the process of "re-restoring" my RCA Victor television model 730TV1. I noticed that the set was had a 5U4G in the socket instead of the spec 5V4G. Are these interchangeable in a damper circuit?
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I've seen it done too! The 5V4 is an indirectly heated cathode. Heater is rated a two amps, where the 5U4 is three amps.
The power transformer has a separate winding rated at two amps, but insulated for the high potential found in the damper circuit.
Best to replace it with a 5V4G.
