As wrote in DX4 manual pin 1 - strobe pin16 - PTT pin17 - CW The emitter of both transistors to pin 1 Collector of each transistors to PTT and CWKey of Radio. But where is ground? To connect Radio need another line: two wire to PTT (from collector and ground) two wire to CWKey (from collector and ground). Pin 1 to ground? In N6TR the ground was pin 18 - all other is same Sorry for stupid question & poor English. Vlad UA6JD [EMAIL PROTECTED]
