No, the K3 CANNOT switch a negative voltage for keyout! It is a solid-state circuit which
is quite robust (+200v at 5A), but only for positive DC voltages.
K3 schematics are here:
<http://www.elecraft.com/manual/K3_Schematics_Jun_2010.pdf>
On 8/31/2013 3:52 AM, Doug Basberg wrote:
Hello;
I just put together my K3/100 with ATU. What a great transceiver!
Now I need to hook it to my vintage Collins 30L-1 linear amp. The manual
says the K3 can handle up to 200 volts on 'key out'. That might mean I can
hook up directly to the linear. One question is whether that also means
minus 200v. The Collins has -170vdc on its connector. I was thinking the
K3 uses relay contacts for the 'key out', but maybe not. Second question is
whether the K3 schematics are available?
The powerful configurability of the K3 means I have a learning curve to go
thru. I think this reflector will be a big help. Searching the archives
will probably solve a lot of questions and then there is the 'live'
community. Very good. I also subscribed to the yahoo group.
73s Doug N8VY
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
