hi,
i'm building my first tube amp on 2m with a gs-35b grid grounded.
yesterday i made a try with the full bias circuit but when the ht (3500)
arrives the grid meter jump quite high then the fuse of the power supply
blown. I replace the fuse with a smaller one, i removed the bias circuit
and i have connected a 10K resistor between the cathode and the -HT.
Same result. I do not understand why the tube is not blocked and why i
have so many current on the grid.
any idea ?
Flo F5CWU
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