Highfields Amateur Radio Club
Constructors Corner.

Vertex Standard / Yaesu Microphone Pin Outs.
For: FT-75B, FT-620.

Important:
Never ground pin 1 or damage to the radio will occur.

6 Pin locking ring Pin Signal
connector 1 +13.5v
2 Audio Out
3 Common Ground
4 Common Ground
5 PTT
(connect to pin 3 or pin 4 for TX)
6 Mic Audio

6 Pin locking ring	Pin	Signal
	1	+13.5v
2	Audio Out
3	Common Ground
4	Common Ground
5	PTT (connect to pin 3 or pin 4 for TX)
6	Mic Audio