Highfields Amateur Radio Club
Constructors Corner.

Microphone Pin Outs.

Mobile, Portable and Base radios:

T-4	T-4B	T-4XB	T-4XC	TR-3	TR-4
TR-4C	TR-4CW	TR-5	TR-6	TR-7	TR-7A
TR-22	TR-72	TR-270	TR-4310

Microphone Wiring Index Page.
Constructors Corner Index Page.
Or Sitemap.