In , "George Kinzer"
wrote:


Realistic Radios

Model: TRC-24A, TRC-24B, TRC-30, TRC-30A, TRC-55, TRC-56, TRC-57, TRC-67,
TRC-410, TRC-412, TRC-413, TRC-414, TRC-415, TRC-417, TRC-420, TRC-421,
TRC-421A, TRC-422A, TRC-424, TRC-425, TRC-426, TRC-427, TRC-428, TRC-430,
TRC-431, TRC-4 32, TRC-433, TRC-434, TRC-440, TRC-441, TRC-448, TRC-449,
TRC-450, TRC-451, TRC-452, TRC-453, TRC-454, TRC-455, TRC-456, TRC-457,
TRC-458, TRC-459, TRC-460, TRC-461, TRC-462, TRC-466, TRC-467, TRC-468,
TRC-469, TRC-470, TRC-473, TRC-477, TRC-479, TRC-480, TRC-482, TRC-490,
TRC-492, TRC-500
Standard wiring:
Pin4=Audio
Pin1=Shield
Pin2=N/C
Pin5=Receive
Pin3=Transmit


TRC-23B 'NAVAHO', TRC-40 'NAVAHO PRO'

Pin 1 - Audio
Pin 2 - Shield
Pin 3 - Gnd on TX

......which is why I asked which model. And for future reference, the mic for the
TRC-24B does -not- use the familiar DIN-type connector, and while the pinouts
are correct and pin 2 is not connected in the radio, the mic was used with other
radios and was wired so pin 2 is shorted to pin 4 in Rx.








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