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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Re: Hammond 166 L5 filament transformer posted by Tre' on March 14, 2006 at 16:29:02:
It doesn't matter how the filament is constructed. In a push-pull output stage, any AC filament hum is automatically cancelled in the output transformer.I have used a number of directly heated tubes (2A3, 6B4, 100TL, 4-250A, 3-500Z, 3-1000A, etc.) in a push-pull output stage, and I never used hum-balance controls. The filament transformers enter tap was either grounded, or used self-bias.
I suggest you save yourself a lot of expense and use the center tap, and it makes no difference in sound.
Regards,
Mike
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Follow Ups
- Re: Hammond 166 L5 filament transformer - Mike Burrows 16:59:21 03/14/06 (1)
- Re: Hammond 166 L5 filament transformer - Tre' 21:39:49 03/14/06 (0)
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