[Elecraft] Aststic D-104

[Don Wilhelm]

John,

Which Proset?  If it is the ProSet-K2 or a ProSet-iC, then you should 
use the electret element Heil uses in their microphone for Icom (those 
with an -iC suffix).
OTOH, if you have the normal HC-5 (or HC-4) element in your ProSet, your 
choice of the Heil dynamic element will work as you plan - BUT, you will 
*not* need the amplifier, just connect the hot mic lead to pin 1 of the 
8 pin Foster plug, shield to pin 7,  PTT to pin 2 and PTT Return to pin 8.
In any case, with the Heil element in the D-104 head, you do not want 
the amplifier we have been talking about - that is only for use with the 
original Astatic element.

In other words, if you add the FET amplifier, leave the mic element as 
it is now.

73,
Don W3FPR

On 1/28/2014 4:32 PM, John Fritze wrote:
> Thanks for the additional info guys.  I guess I should have posted that the
> reason for me to revamp my D-104
>   was because the previous owner had did some surgery on the circuit board
> and mic element.  The 9V battery had leaked all over the board damaging it.
>   So with that I thought it was easier to start fresh.
>
> I am also hoping that by putting a Heil element in, that it would match my
> Proset close enough so I wouldn't need to make adjustments in the equalizer
>   settings when switching mics.