Joe - aa4nn wrote:
Hi 'crafters,
I perused the archives and found a little bit of information on the K2 having
a high voltage keying transistor for keying an external amplifier. Use of 8R
Hold for delay times? I need more help on how to do this for operating in CW
only.
I am accustomed to linears having key-in, key-out for QSK. This Tokyo
Hy-Power amp has a fast t/r relay to put the amp into transmit mode,
equivalent to PTT where I have used a foot switch to transmit. While a foot
switch isn't bad, I'd rather use the K2 keying transistor to trigger the amp.
Am I on the right track? Any ideas?
You shouldn't have any trouble using the keying output of the k2/100, which is
based on the 8r line. There is sufficient lead time to safely key QSK amps (I
forget how much, but maybe 15 msec? -- someone who knows, please jump in). I
have used it with homebrew vacuum relay QSK systems as well as an Alpha with PIN
diode switching. You should not need the key-in/out setup.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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