Doesn't grounded grid/cathode driven operation provide much if not all of
the degeneration/negative feedback we are discussing here?
73,
K5GW
In a message dated 12/14/2005 11:10:17 P.M. Central Standard Time,
K1JJ@comcast.net writes:
Correction:
It was pointed out to me that the cathode resistor for negative feedback is
to be used only for a grid driven [grounded cathode] amplifier to generate
degenerative [negative] feedback.
In a cathode driven [GG] amplifier, the cathode is in phase with the plate
and it will not work. A different method must be used for neg feedback.
This is why my GG triode did not show any diffence in drive when I tried
the cathode resistor.
I saw the idea in the archives and must have missed the fact that they were
talking about grid driven amps at the time.
73,
Tom, K1JJ
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