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:
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