[Hallicrafters] Coax Switch ?

[Michael Melland]

>After a serious shack cleanup I mis-wired the station 
>selection scheme.  I
>had inserted the station switch between the transceiver 
>and commercial HF
>amp.  The next time I used the KWS-1 (600W output) it was 
>'piped' thru the
>HF amp (which was powered off). After just a brief 
>transmission I noticed
>smoke curling out of the amp.   The amp is QSK capable 
>and even when powered
>off the QSK circuit was connected to the RF input.  This 
>is fine as long as
>the RF passing thru is <100W - but turned things to toast 
>at 600W.

Thanks Bill,

Your experience above was just what I was concerned about. 
 I want to run the output of the SR-400A through the tuner 
and amp I have in line.  The amp is a solid state Ten-Tec 
Hercules II.  I called Ten-Tec after reading your email 
and they advised that there would be no problem running 
the 260 or so watts of the Halli through the Herc 'cause 
it's bypassed when turned off.  Their QSK system 
apparently only switches the reed relay and vac relay when 
the TX en/out sense lines ground.  So it appears I should 
not have a problem (famous last words). Thanks for 
reminding me to check !!

Mike

--
Michael Melland, W9WIS
Winneconne, WI USA