A friend of mine had built an amplifier and his plate current meter
would read very little current when the transmitter was keyed.
In fact the current would decrease some times. He showed me the
schematic and I asked what kind of diode he had placed across the
metering circuit. He had uses a fast diode. I suggested he replace
it with a slow power diode such as a 1N4004 or 1N4007.
It worked. His protection diodes were detecting RF and deflecting
the meter the wrong way.HI HI HI. This amp had 4 811A's and worked
just fine after that.
William L. Fuqua III P.E. E-mail WLFUQU00@POP.UKY.EDU Phone (606) 257-4155
Department of Physics and Astronomy CP-177 Chem. Phys. Bldg.
University of Kentucky , Lexington, Ky 40506-0055
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