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ID = 11976
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Photocell High vakuum 
Identical to 917
First Source (s)
20.Mar.1943 : -- Original-techn. papers.

Base UX-Base (4 Pins (2 thick, USA 1924, UX) Top contact with a cap.
Was used by Technology / Measurement

Side-on type having S-1 response. Wavelength of maximum spectral response is 8000 +/- 1000 angstroms. This type makes use of a semicylindrical photocathode, and has a direct interelectrode capacitance of 3 picofarads. Anode-Supply voltage is 90 volts.


Dimensions (WHD)
incl. pins / tip
30 x 110 x mm / 1.18 x 4.33 x inch
Weight 31 g / 1.09 oz
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   RCA Phototubes and Photocells PT-60
  917: RCA Phototubes 1941
David Erali
Christian Schaufelberger

More ...
917: Datenblatt
Wolfgang Bauer

917: AWV Radiotron Valve Data Book
Stuart Irwin

More ...

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