[Elecraft] K2 Keying current?

[Tom Hammond]

Chris:

Just about any(!) general purpose NPN will work.

If you're interested in a PC board design which includes PTT, go to 
the "general info' page at www.n0ss.net and take a look at the design there.

73,

Tom Hammond   N0SS

At 11:35 AM 8/2/2007, Chris Kantarjiev wrote:
>I'd like to build a parallel port keying cable for my K2. Lots of schematics
>on the web, all calling for a 2N2222. I find that I don't have any of
>those in my junk box right now (horrors!) but have lots of 2N4124;
>the big difference is that the 4124 is limited to 200mA collector current.
>
>It seems like this should be enough, since the keyer contact goes
>straight to the MCU ... right?
>
>73 de chris K6DBG
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