Bill Garber wrote:
If this is right, then a Disk II directly connected to it would allow writing to a protected disk, andPhase0 would not be grounded.
You are correct there is a discrepancy. It looks like my ohm meter is starting to read erratically. So here's a revised pinout 20 pin 19 pin 1 -------- 16 2 -------- 11 3 -------- 2 4 -------- 12 5 -------- 3 6 -------- 13 7 -------- 4 8 -------- 14 9 -------- 5 10 ------- 15 11 ------- 6 12 ------- 6 13 ------- 7 14 ------- 17 15 ------- 10 16 ------- 18 17 ------- 8 18 ------- 19 19 ------- 8 20 ------- 10 Pin 1 and 9 on the 19 pin connector aren�t connected. Wayne