[Elecraft] K3 & Heil HM-10 Dual

[Don Wilhelm]

John,

If you apply bias to a dynamic mic, the microphone element will be 
pulled off center by the bias voltage.  Much the same as putting a 
voltage across a speaker.
It *could* damage the element is the element wire is not large enough to 
handle the current, but with the mic element not in its neutral 
position, the mic may sound funny.

73,
Don W3FPR

On 4/18/2017 1:59 PM, john at kk9a.com wrote:
> If you use an electret with no bias you have no audio.  What happens if
> you use a dynamic mic with bias on such as the HC4/HC5 element in the
> subject line?