External key / external Elbug

[dl7ba]

Hej!

Is it possible to work with an external key, elbug or handbag to AUX? How do I configure this?
A paddle as a key with the electronics in the 1274B works, but I prefer to work with my old key (ETM9).

73! Roland dl7ba

[DF1NP]

Hi Roland,

I use ETM 9c keyer.
Conf. and wireing look manual 1258 MK-II cw-keying: I/0 Connector control and radio RRC.

73
Willi