SV: [AMPS] G2DAF Circuit

[k7fm@teleport.com (Lamb)]

Rich said:

"Norm's circuit was grid driven. "

Rich, I am looking at Norm's circuit on page 157 of the New Sideband
Handbook published by Don Stoner.  On the left of the schematic, there is a
notation that says "rf input".  A connection is shown from that point to the
grid of a 6L6 "gate" tube.  The connection also goes to the filaments of two
RK-65 amplifier tubes.  I do not call that grid driven.  The wire inside the
tube that gets hot and emits electrons is not the grid.  Perhaps I should
have called Norm's circuit "filament" drive.  Norm makes a special point of
noting that the 2 ufd capacitor on the screen must be oil filled.  Would
that be olive or canola oil?

Colin  K7FM







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