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Old 13th May 2003, 12:23 AM   #1
mig-ru is offline mig-ru  Russian Federation
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Default Direct heated tubes with centre tap on filament

I was wondering if there are such tubes out there, and if so would it improve hum with AC filaments, or would it not work due to imposibility of having a perfectly balanced filament?
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Old 13th May 2003, 01:16 AM   #2
PassFan is offline PassFan  United States
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Default Re: Direct heated tubes with centre tap on filament

Quote:
Originally posted by mig-ru
I was wondering if there are such tubes out there, and if so would it improve hum with AC filaments, or would it not work due to imposibility of having a perfectly balanced filament?
Why would you want to improve hum?
Most people want to eliminate it.
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Old 13th May 2003, 01:44 AM   #3
mig-ru is offline mig-ru  Russian Federation
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I meant improve upon reducing hum with AC filaments.
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