[Elecraft] KX3: Cleaner audio with Yamaha CM500, also PTT

[James Wilson]

​There's still another Koss headset - Model KS-45 that's
plug-in compatible with the Yamaha CM500. It has an
electret mic. Also about $25 on Amazon.

Look also at Amazon's listing for a RoverBeats Bravo.
Electrically and functionally (and sound) it's interchangeable
with the CM500 and - for us REALLY CHEAP hams, it's
only about $10.  Well worth a try.

All three of these are look-alikes and have electret mics and
the same wiring and 3.5mm plugs. They sound almost the
same plugged into the rear jacks on my K3 (with bias turned on.)

Jim - W4RKS

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