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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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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: One more thing... posted by Vinnie on May 1, 2007 at 03:33:48:
>I guess while I am using the variac I can use a separate ac supply for the 6au4 filaments so they are warmYou've already tested the HV supply separately from the amplifier. You know that when you bring up the AC voltage, the transformer/bridge draw very little current. If you don't want to eliminate the variac, I suggest that you temporarily replace the 6AU4s with silicon. Most important, you need a separate supply to apply full filament voltage to the 845s at all times. They should be lit well before application of B+, and to ensure longest possible life, should remain lit until after B+ is removed.
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- Re: One more thing... - Triode_Kingdom 05:28:55 05/01/07 (0)
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