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ID = 11988
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Tube type:  Photocell Gas filled 
Identical to 930 = GL930
Similar Tubes
Normally replaceable-slightly different:
First Source (s)
15.Aug.1946 : -- Original-techn. papers.

Base Octal (Int.Octal, IO) K8A, USA 1935

Side-on type having Red-infrared-sensitive S-1 response. Wavelength of maximum spectral response is 8000 +/- 1000 angstroms. Makes use of a semicylindrical photocathode, and has a direct interelectrode capacitance of 2.4 picofarads.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
33 x 64 x mm / 1.30 x 2.52 x inch
Weight 26 g / 0.92 oz
Tube prices 3 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   RCA Phototubes and Photocells PT-60

930: RCA Phototubes 1941
David Erali

930_pin.png 930
Emilio Ciardiello

Just Qvigstad
930: RCA
Patrice Zeissloff

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