The old Heath microphone I use(d) with my HW101 has finally died and
I need to get a replacement. Rather than trying to find another old
microphone for a replacement (e.g. off EBAY), I'd like to purchase a
new, current (reasonably priced) model microphone. Would appreciate any
helpful suggestions in this regard.

Beyond the microphone being high impedance (60K-100K?), and push to
talk, I'm not sure what I need to be looking for (or avoiding) when
looking through a current catalog of available microphones.

Thanks,
Paul
N6LQ