Roln:

The last electret element I bought from Radio Shack had the wiring diagram
for it printed on the back of the blister pack card.

For your radio, look in the owner's manual. It should show the microphone
connector pinouts. Most modern HF rigs have DC available (8 volts or so) on
one of the pins.

The mic cable will need enough wires for:

1. ground (may use the shield on #2)
2. audio (shielded)
3. PTT (push to talk)
4. DC voltage to operate the electret element

Radio Shack may also carry the 8 pin microphone connector that is compatible
with yaecomwood radios.

GL and 73,

Roger K6XQ