Yea, I knooooww, but I'm a SW person so I sometimes get lost in the EE details, even when they are very basic.
By "T-R Relay keying output" I guess it means it is a relay that can be used to control the T/R switching of an external amp. In other words, the KEY OUT jack acts like a switch, open / closed. The Amp would have a TR line that would be providing a voltage. When the K3 KEY OUT goes to "closed", the Amplifier's TR line would be pulled to ground and this would tell the amp to switch to TX. Yes? The fact it is labeled as an output confuses me a bit, making me think the K3 is sending some voltage, but the K3 sending 1KW (200 v @ 5 amps) makes no sense. I'm just hoping it can be used to make my old Heathkit code oscillator beep when I send CW with the K3. Or maybe I can use it to turn my coffee pot on :-) - Keith N1AS - - K3 711 - -----Original Message----- From: Don Wilhelm [mailto:w3...@embarqmail.com] From page 17 of the manual "KEY OUT (RCA/Phono) is the amplifier T-R relay keying output, capable of keying up to +200VDC @ 5A." _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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