[Elecraft] MicroHam microkeyer

[Chris Kantarjiev]

> For my own K2, I have put a plug into pin 4 and broken off pin 4 of the
> mating cable, so only that special cable can be plugged into the K2 to
> prevent an accident that can happen to the best of us.

An excellent idea. It's not just Elecraft that do this; Kantronics
established a radio connection in a DB9 many years back for
their TNC cables. No RS232 signals present at all - audio and power
and PTT!

> Looks like a opportunity for somebody to venture into the commercial world 
> with a "CONVERSION PLUG" for the K2??

Hmm. Converting to what, I wonder? The issue, I think, is that the
DB9 on the K2 presents some signals that will damage a 'normal' 
RS232 port if connected with a straight-through cable...

73 de chris K6DBG