K-40 Mic Wiring Question

[JJim]

Anybody know the correct pinout wiring for a K40 mic. (the older type with internal magnet and Hi/Lo switch) and a Cobra 18RV (5pin din).
I have tried several different combinations and have had no luck. Any help would be great.

Thanks

-jim

 

[warhorse]

Hi Jjim-i have an old k40 speech pro as well mines in a right old state project for another day'' info i have= Blue(rx)
Red(tx)
Shield/Black(GRD)
Yellow-n,connected
White(Audio).

 

[skybolt58]

k40mic

Hi all, I see this is an old post, but I was given a brand new old K40mic, it is the dynamic plain noise cancelling one, well I wired it up for cobra 4 pin and No GO, checked wiring and the blue wire is no rec? I opened the mic and from factory the Blue and Yellow wires and not connected to anything at all? any one familiar with these mics? I need the rec, because the mic has to be plugged in to rec on a cobra 29 LTD Classic? HELP????