The obvious solution is just to use the K3 +12VDC output connector for all accessories. It's rated for 0.5A which should be plenty for most devices. As a bonus it's controlled by the K3 ON/OFF switch.
Al N1AL On Mon, 2008-08-18 at 16:47, Joe Subich, W4TV wrote: > Tom writes: > > > Be especially aware that rigs with external 12V supplies can > > develop what sounds exactly like RFI from "pin 1" problems. > > > > This is because the power supply leads of the SSB radio are > > current modulated at an audio rate. If the 12V supply has a > > ground connection common to the negative lead post on the > > supply (or through other gear) the V- lead voltage drop can > > cause a "pin 1" issue from dc potential that varies at an > > audio rate. > > This is a particular problem with transceivers that have a > single V- lead and only one "pin" for the V- connection (like > the K3). ... _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
