Pinouts for MAKE TRAX (Williams, 1981) Submitted by shu@cco.caltech.edu / essayes@telerama.LM.com Here are the Make Trax pinouts, as promised. Unfortunately I can't confirm it's 100% correct, as my board has a bad RAM so I couldn't test any of the switches. At the very least the video and power contacts are correctly identified. Like I mentioned, the board is not the big multi-unit Williams setup used in Stargate, Robotron, etc. It's a single board, kinda small. 36-pin edge connector A GND 1 GND B GND 2 GND C GND 3 GND D AUDIO OUT 4 AUDIO RET E +12 VDC 5 +12 VDC F COMP SYNC 6 H 7 J 8 K +5 VDC 9 +5 VDC L 2P DOWN 10 M 2P UP 11 1P UP N 2P START 12 1P DOWN P 1P START 13 COIN R 1P RIGHT 14 S 1P LEFT 15 RED T BLUE 16 2P RIGHT U GREEN 17 2P LEFT V 18