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Filament Voltage

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02-07-2025, 02:29 PM

Tom9589

VideoKarma Member

Join Date: Jan 2013

Location: Stone Mountain, GA

Posts: 486

Filament Voltage

Why was the voltage 6.3 volts chosen for standard filament voltage? Why not 6.0 volts? A 5U4 has a 5.0 volt filament.

Curious minds want to know.....

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