[Elecraft] Heil HC-5 Taiwanese Equivalent?

[Tony]

All:

I was looking an original Heil HC-5 microphone element for my KX3 when I 
came across this unit from an unknown manufacturer in Tawain:

See: 
https://www.electronicsurplus.com/qw442-1740-audio-microphones-element-only-miniature

There's no frequency response curve or other information other than a 
comment about the element favoring higher frequencies. I've emailed the 
seller to find out more.

I have an original HC-5 that produces excellent communications audio 
with my K3S and it would be nice to find one for the KX3. If anyone has 
an original HC-5 laying around, please let me know.

Tony