[Elecraft] Knowles HC-3 Mic Element Replacement For Heil HC-5

[Tony]

All:

I just ordered a Knowles 2390 mic element which is supposed to be 
identical to the Heil HC-5 in terms of frequency response. The eBay 
seller states that these are new in the box obtained from a workshop 
that repaired equipment for the UK military. The size of the element is 
similar to the HC-4/HC-5.

I plan on comparing the mic to the original HC-5 and HC-4 elements I 
have. Will report back.

See: https://www.ebay.com/itm/123929644486

Tony -K2MO