[Elecraft] Microphone Re-wiring Astatic D-104

[Bayard Coolidge]

Alan (and others) -

I'm a very new K3 owner (S/N 06852) of only a few weeks, and I migrated from
an Icom IC-746Pro, and brought my D-104 and G-Stand over to the K3.

I am using a Heil HC-4 element in my D-104, instead of the original Astatic element.

One side of the HC-4 goes to a .01 (? or is it .001 - print's too small!) capacitor. The
other side of the capacitor goes to Pin 3 of the D-104 Lollipop plug. The other side
of the HC-4 goes to Pin 2 of the D-104 Lollipop plug. Pin 1 is the Lollipop's housing.

Pin 3 at the top of the G-Stand has a green wire which is connected to Terminal "B"
on the Terminal strip in the bottom of the G-Stand - this is "Mic Hot". Pin 2 at the top
of the G-Stand is internally strapped to Pin 1, and comes down on a black wire which
goes to Terminal "A" which is screwed directly to the housing.

Internal to the G-Stand are two more wires, Yellow and White/Green. Yellow is the
PTT NO line, and goes to Terminal C. White/Green is PTT NC and is NOT USED.

My coiled microphone cable is a simple two-wires-plus-shield/braid. Red is used as
Mic Hot and is connected to Terminal B on the G-Stand and K3 Pin 1. White is used
as PTT and is connected to Terminal C on the G-Stand and K3 Pin 2. Shield is
connected to Terminal A and K3 Pin 8. 

I realize that this is a quick-and-dirty hack, and I'm sure others will have better ways
to accomplish what we're trying to do, but I know it worked well enough to get yelled
at on 12m the other day for not having my 'SPLIT' button engaged in a certain pile-up !

HTH and 73,

Bayard R. "Brandy" Coolidge, N1HO