Joe wrote:
I'm not sure but I don't think the HP-86s uses
NTSC video.
It's not NTSC, but only because it's not color. It's either at
or near the RS170 standard video scan rates (60 Hz vertical,
15750 Hz horizontal), so it works fine with any usual composite
video monitor.
They do work with the HP 82912 and 82913 monitors.
Which are standard scan rate monitors.
Eric