Thread: Hello..my first TV
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Old 04-07-2020, 03:27 PM
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Electronic M Electronic M is offline
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Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
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Both tubes have the same pinout and the same heater voltage and current so the transformer doesn't benefit from either one.
The 5R4 is rated for higher max plate voltage and plate current so I'd stick with it.
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