[Elecraft] Microphone Hum - MH2 on K3

[radiori]

Follow-up to my original post. If I short PTT (pin 2) on the front panel
microphone connector to either shell or ground (pin 8) the radio goes into
transmit with NO hum.  Similarly if I short Mic Audio (pin 1) to shell or
ground with VOX enabled the radio transmits with no hum. So perhaps it is
the microphone.

Thanks, Brian, K1NW

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Brian, K1NW
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