[Amps] Parasitic suppressor resistor

[Steve Thompson]

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