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Two Recording Lamps ?
| I guess these
tubes are "recording lamps". As their intensity
could be varied at an audio-frequency rate, they where
used for exposing variable-density sound tracks on motion
picture film, and for exposing paper or film in
photographic facsimile recording. Infos about this tube are welcome ! |
Above :
"NEOTRON 25"
Below : "Recording Tube Type 101 # C-13 JAMES M.
BURNAM"
Total height : 5.5" (14 cm)
Detail of the NEOTRON 25
Details of the Type 101
The NEOTRON 25 contains neon; the Type 101 contains argon.
