Anyone familiar with these vintage touchscreens?

John Foust jfoust at threedee.com
Mon Oct 21 11:19:48 CDT 2019


And what sort of technology was that screen using?  I expected to see
the grid array of outer infrared LEDs and detectors that I vaguely remember
from that era, but I don't see that here.  Someone was making a tube 
that was coarsely touch-sensitive?

- John



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