[Elecraft] Anyone know how an MH2 works?

[Dan Barker]

Mine doesn't.

I NEVER use SSB, but I'm sure I tested the MH2 when I built my KPSK2 ssb
adapter.

Anyhow, at pin5 of the KSB2, no mic, I have 5v (10K pull up). With the mic
plugged in, it's 0v. Is that right?

Pulled the mic apart. No shorts, all lines ring out. The element looks to my
DMM to be a dead short. Is that right?

Millampmeter inline with a 11K pull-up and a 9v battery shows .7 ma. Is that
right?

Oh, yes. Whistling into it makes no wiggles on the o'scope.

Dan / WG4S / K2 #2456