[Elecraft] K2 Microphone

[W3FPR]

Glenn,

The K2 can use many different microphones.  At the time the KSB2 was 
created, Elecraft did not have a microphone available, so a microphone 
configuration header was provided so it could be configured for many 
different microphones.  The header is located on the rear of the Front 
Panel board.
See the KSB2 instructions for plugging information.

Most any Kenwood, Yaesu, Icom, Radio Shack, and a few other microphones 
as well as the Elecraft MH4  can be used.
For those mics that use an electret mic element, a bias resistor must be 
used (do not use that bias with a dynamic element microphone).
You just have to know how the Microphone Configuration header is plugged 
to determine which microphone will work, or replug that header for 
whichever microphone you choose.

73,
Don W3FPR

On 12/19/2025 8:38 AM, Glenn Pritchard via Elecraft wrote: