[Elecraft] K2 Microphones

[Don Brown]

Hi

I have used the model 701 hand mike sold by TenTec on the K2. This mike 
comes with a 4 pin connector but if you change it to the 8 pin used on the 
K2 and add the 5.6K resistor from the +5 volt pin to the AF pin on the front 
panel board it works fine. It only costs $28. If you add the bias resistor 
most headsets for cell phones should work also if you change the connector 
or build an adapter cable with a PTT button. Most dynamic mikes do not have 
enough output to properly drive the K2 without a preamplifier. The electrit 
capacitor mikes like the TenTec or headsets work fine. The MH2 hand mike 
sold by Elecraft has been discontinued. This mike had a electrit element 
inside it.

Don Brown
KD5NDB




----- Original Message ----- 
From: "Wayne Reed" <wlreed11 at earthlink.net>
To: <elecraft at mailman.qth.net>
Sent: Thursday, November 17, 2005 2:09 PM
Subject: [Elecraft] K2 Microphones


Gang,
    Just put the SSB board in my K2 [S/N 4858].  I have tried my Shure 444 
with the K2 and seem to have no drive.  I think I will try a portable 
telephone headset.  I will need to get some bias for the mike from the K2 
then I'll find out if I have a problem with the SSB board or my old trusty 
444.
    Would like to hear from those who have used cheap/nonstandard 
microphones with the K2.
Wayne K9NE