these are light-pipe grain of wheat lamp type displays no truly Numitrons
---------- Original Message ----------
From: Mike Mitchell <mmitch...@gmail.com>
Date: February 14, 2017 at 8:02 AM
I recently came across some numitrons used in aircraft displays. They are .3" digit in molded back plastic.Two small screws hold them together, so I took one apart. One half is light pipes for the segments, the other is a socket for seven grain-of-wheat bulbs. Each bulb is 5v 20ma.The back has eight color-coded wires, one common (black), the rest go to the segment bulbs.I haven't figured out what I want to do with them yet.--
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