Ron,
Here's the Triad 125 watt multi-match M12AL spec. sheet that came with my transformer.
It shows lead colors vs. impedance, pri. and secondary.
I'm currently using mine in a 120 watt 6146 modulator.
I sent a copy a few months ago to Steve, WB3HUZ for inclusion in the AM Window. He'll get around to posting it one of these days
-Rick