[Elecraft] K2 Microphone Suggestions?

[Jim Brown]

On 10/5/2011 12:01 PM, David Elliott wrote:
> However, I would
> >  like a cheap, basic hand mic that would work for the occasional SSB
> >  rag chew or field op. Something really basic.

Not a hand mic, but the mic on the Yamaha CM500 headset would work VERY 
well with a K2. The K2 is low on audio gain, and the CM500 is a pretty 
hot mic, so it will compensate.

See http://audiosystemsgroup.com/HamInterfacing.pdf for guidance in 
connecting it.  You will need to buy a mic plug, 1/8-in jack, and a 
small resistor of 4.7K-6.8K to make a simple adapter.  You want to find 
a resistor small enough to fit in the mic connector.  And you will need 
to consult the K2 schematic to see which pin is audio in and which pin 
is +8VDC.

Wiring is simple.  The mic connects between the audio input and the 
chassis (shell). The resistor goes between the V+ pin and the audio 
input.  The pdf tells you a part number for the 1/8-in jack and where to 
buy it.

73, JimK9YC