[Elecraft] Microphones for K2/3

Don Wilhelm w3fpr at embarqmail.com
Wed Sep 5 19:42:17 EDT 2007


John and all,

You are correct that 'Heil Proset' by itself does not adequately 
describe the microphone.  As is the case with all Heil mics, one must 
also be specific about the mic element used.

The K2 works best with an electret element because they have higher 
output levels.  The K3 FAQ pages indicate that it has adequate mic gain 
to handle the lower output Heil HC4 and HC5 elements.

The Heil Proset K2 can be used with either the K2 or the K3, and it 
comes with the Elecraft adapter.

73,
Don W3FPR

John R. Lonigro wrote:
> John and Charles:
> The Heil Prosets with the HC-4 or HC-5 elements don't have quite 
> enough output to drive the K2 without either an external preamp or 
> tweaking of the K2's internal circuitry.  The version with the 
> electret element seems to work better with the K2.  I believe the Heil 
> K2 Proset is essentially the version with the electret element, but 
> I'm not 100% certain on that matter.
>
> All Prosets require an adapter to match your particular mic jack 
> configuration, so that is not a factor.
>
> No idea about the K3.
>
> 73's,
> John AA0VE
>


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