Thread: Hello..my first TV
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  #24  
Old 04-13-2020, 08:23 PM
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jr_tech jr_tech is offline
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Quote:
Originally Posted by Donj View Post
jr,
Tube is a 12at7. Split filament maybe?
Yes, so indeed, the heater for 1/2 of the tube runs on AC and the heater for the other 1/2 runs on DC.... I don’t believe I have seen that before. Curious!

jr
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