Collins follows the standard connectivity for the PL-68. Tip is PTT, Ring is mic, Sleeve is GND.

K3HVG

On 04/20/2026 3:05 PM EDT MilComm Guy via MRCA <[email protected]> wrote:

I purchased a Collins MM-1 with the cord cut off right at the spring. I have a replacement cord, it has 4 wires, red, green, black and white. I also have a cut off PL-68 for the connector, it has white-tip, red-ring and black-sleeve. I am asking for help making the connections. The mike has not arrived yet but I suspect inside will be wiring of a standard color. Any help appreciated.

Thanks

Mark

K1HF

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