Western Electric photoelectric cell
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Science Museum Group
©The Board of Trustees of the Science Museum
Western Electric photoelectric cell No. 2A c1930. Used for the reproduction of variable density optical sound tracks
Details
- Category:
- Cinematography
- Object Number:
- 1992-5003
- Measurements:
-
Bulb: 104 mm x 52 mm x 52 mm,
Tube: 143 mm 82 mm,
- type:
- photoelectric cell
- credit:
- Varley, R. (NMPFT)
