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I think this is an electron tube for detecting radiation. It was used in a radioactivity lab where
my dad worked and they were just throwing them away. This is one my dad picked up. On the label is has the information-
THORN EMI Electron Tubes
Type 9798QB03
Serial 111653
Ruislip
Middlesex England
I think this is a digitron display. It is
made by NEC Japan. Across the front of the display behind the glass there are three filaments that glow dimly when a current
is applied to two of the terminals. The inside of the display is a vacuum or it may be filled with some inert gas. If you
know how these displays work than I would be very pleased to hear from you.
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