Is anyone use a Pi or a T filter ahead of his dummy load?
73
John, ON4UN
>
>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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>
>
----------------------------------------------------------------------------
john.devoldere@innet.be
Call us in all major 1997 contests: ON4UN or OT7T
John Devoldere (ON4UN-AA4OI)
P.O.BOX 41
B-9000 Ghent (Belgium)
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