That PTT RCA socket is an INPUT - to close the PTT line - ie it puts the K3 into transmit.
On 26/12/07 19:16, "Dave G4AON" <[EMAIL PROTECTED]> sent: > I use my K3/100 with an Acom 1000, I just connect the phono keying > output to the amplifier keying input with a phono to phono screened > lead. The Acom doesn't have ALC output, so it's not an issue. The > K3/Acom combination works great on CW with no relay thumps or clicks > from the almost silent vacuum relay in the Acom linear. > > The ALC input to the K3 is positive going (0 to + 5 Volts on pin 15 of > the Aux I/O socket) and has been discussed on the Reflector previously. > > 73 Dave, G4AON > K3/100 #80 > ================ > > When examining the back panel of the K3 I see an output for PTT to control an > amplifier but I don't see any input for the amplifier AGC output to control > the transmitter power. Surely this common feature was not overlooked on > such a feature rich transceiver. Where is the connection for this control > and what control voltage is it looking for? I don't see an amplifier hook > up diagram in the manual either. Surely someone using this transceiver with > an amp! -- Man is the best computer we can put aboard a spacecraft and the only one that can be mass produced with unskilled labour. -Wernher von Braun, rocket engineer (1912-1977) _______________________________________________ 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
