> >The question referred to suppressing 100 mHz only. This can be done with
a
> >stub, a series tuned circuit that loads the parasitic at that frequency,
>
> ** loading the parasitic after the fact is not possible. The trick is
> to reduce gain at the anode's specific damped-wave ringing frequency.
Probably a dumb question.. in 4-1000 amps the "parasitic" or oscillation
that occurs was in the 90 or so MHZ region. It seemed very easy to
cure that by moving that "resonant" freq out of the VHF "high gain "
region ( or is it called self resonant freq of the tube ?) down to a lower
freq
just by inserting a coil of wire in the plate lead. No resistor needed at
all,
just keep the "resonance" above 35 MHZ or so, so that it did not affect 10
meters.
What am I missing that this is not used more ??
Merv
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