"William L. Fuqua III" wrote:
>
> I don't hear much about the old tube TR swiches.
> Surely one could be used with a small lower power relay on the
> transceiver end for full QSK. Have to time things such that
> the tranceiver doesn't output power into the output of
> the TR switch.
> The Johnson was rated for 4KW PEP input (ie 1KW AM at
> 100% modulation) Which translates to about 3KW at the
> antenna terminals with a 1:1 SWR.
>
> 73
> Bill wa4lav
To see how the Johnson engineers did it, you can download a copy of the
manual for the Johnson TR switch from BAMA. No charge. Just think good
thoughts about James True, N5ARW, who uploaded it.
73,
--
Ken K4XL
grimm@lynchburg.net
BoatAnchor Manual Archive - http://bama.sbc.edu or
ftp://bama.sbc.edu/boatanchor
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