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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: Like so???? posted by Bas Horneman on July 2, 2002 at 04:59:45:
Hey Bas,
I would try to eliminate the 33k grid resistor to the 813. I think the resistance of the secondary driving the 813's grid will provide an adequate return to earth, or negative if you are inclined to also eliminate the valve or resistor in the 813's cathode...it would require a modest negative supply, probably on the order of 50 mA if you went so far as to parallel the 6BX7 and adjust the 813's idle current that way. An adjustable negative of that magnitude is probably easy enough to do......If you're in too deep, take a bigger breath so you can hold it longer the next time...;-)
regards,
Douglas
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- A modest proposal - Sector-7G 08:23:57 07/02/02 (0)
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