[Elecraft] Help with cheap headset and K2

[n4lq]

Bill
My warranty only covers use with the K3. :*)
Steve Ellington
N4LQ at insightbb.com
----- Original Message ----- 
From: "nz0t" <NZ0T at cox.net>
To: <elecraft at mailman.qth.net>
Sent: Sunday, May 18, 2008 7:06 PM
Subject: [Elecraft] Help with cheap headset and K2


>
> Just for grins I bought a cheap Cyber Acoustics computer headset to use 
> with
> my K3 when it arrives.  Others have said they got good reports with their 
> K3
> and this headset which uses an electret mic and a 3.5MM stereo mini plug.
> Not wanting to cut off the plug which fits into the back of the K3 I made 
> up
> an adapter for my K2 using an inline stereo jack, an 8 pin mike plug and a 
> 9
> volt battery through a 5K resistor to power the mic.  My K2 is wired for 
> the
> Kenwood mics and I don't want to power the mic from the rig.  I wired the
> grounds to the base of the plug, 9V DC through the 5K resistor to the 
> middle
> and the mic positive to the tip.  It works but my reports with the K2 have
> not been very good.  I also made up an adapter for my Drake TR7 and 
> reports
> on that rig are fine.
> Am I doing something wrong with the K2?  I know little about electret mics
> and maybe I am using too much voltage or the wrong resistor.  Any help 
> would
> be greatly appreciated.
> If I can't get it to work the headset was only about $15 shipped so no big
> deal.
>
> 73 Bill NZ0T
> -- 
> View this message in context: 
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> Sent from the Elecraft mailing list archive at Nabble.com.
>
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