Highfields Amateur Radio Club
Constructors Corner.
smoking soldering iron
copyright date

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

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

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

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