hi morel and "amps" folks,
morel wrote,
> >>Input Tuned input not req'd Tuned Input
> >
> >Tuned input is expensive but is a "must" not only for purists.
> >
i have to disagree with that one! if an amp (triode *or* tetrode) is
cathode driven, then morel is 100% correct... but the 91beta is *not*
cathode driven. the exciter drives what is essentially a 50-ohm
dummy load, and the amps grids look at the voltage across this load.
"tuned input not req'd" is exactly correct.
73, k6gt
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