Colin:

Yes, I was taking power from the mic jack on the rig.  Used about a 1k 
resistor as a current limiter.
I can give you a text description of the circuit when I get home this 
evening.  That caused an interesting problem.  The k2 is not exactly 
kenwood equivalent wiring.
With the ts2000, dc was on pin 5 I think.  However, on the k2 it was on pin 
6.  So, I installed a toggle switch for that as well.
At 01:11 AM 6/5/2007 -0600, you wrote:
>It may well have power from the HT, but i believe the center ring on the
>2.5MM jack is used for PTT, and the center pin on the 3.5MM jack is used for
>data with use of the PC programming cable.
>That said, there is nothing to prevent 3 or 5VDC from being sent up the
>audio line from the tip of the 2.5MM connecter.
>I'll have to check that.
>When you use the headsets on the HF rigs, were you taking power from the
>mike jack to turn on the condenser microphone element in the headset?
>
>73
>Colin, V A6BKX
>----- Original Message -----
>From: "Gary Lee" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Monday, June 04, 2007 6:38 PM
>Subject: ht headset
>
>
> > Colin:
> >
> > your idea should work.  I have taken your garden variety computer
> > headset mic and built an adapter box to use it with anything wired
> > for the kenwood 8 pin mic connnector.
> > I have used it on both my kenwood ts2000 and the elecraft k2.  Audio
> > reports cannot tell the difference between the headset and the mc43
>microphone.
> > As for power, see, the ht's mic jack may be powered.
> > Good luck, and hope this helps.
> >
> >
> > --
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>6:43 PM
> >
> >
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>12:47 PM
> >
> >

Gary Lee
Ball State University
765-285-1310