Yaesu Md 100 Schematic Verified Guide
Radio (RJ-12) | Pin 1 (5V) ----+----> [C1 10uF] ---> [78L05 Reg] ---> +5V to Electret | Pin 6 (GND) ---+--------------------------+----------> GND for Electret | Pin 2 (MIC) <-----------------------------+----<----- [C2 1uF] <--- Electret Output | Pin 4 (UP) ----[ Switch ]-----------------+ Pin 5 (DOWN) --[ Switch ]-----------------+
Are you planning on , or are you building a custom adapter cable for a different transceiver? Yaesu Md 100 Schematic
Once you obtain a schematic (official or reverse-engineered), it will typically show four distinct blocks. Let's break them down. Radio (RJ-12) | Pin 1 (5V) ----+----> [C1