R. Measures wrote:
> According to a Ham who telephoned me during the grate parasite debate,
> who uses a computer program to design commercial amplifiers, the 8877
> (C-fb = 0.1pF) does not need a parasitic suppressor if the anode
> resonance can moved comfortably above 110MHz. In practical terms, using
> 150MHz as a comfort target, this means that the total L between the
> anode and the Tune-C needs to be under 110nH. In other words, if an
> 8877 amplifier has an anode resonance of under 150MHz and it does not
> use a VHF suppressor, it may be on the ragged edge.
Did he (or she) indicate whether the grid grounding and/or cathode
impedance made any difference?
Steve
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