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929

Information - Help 
ID = 11987
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Photocell High vakuum 
Identical to 929 = GL929 = CE29
Similar Tubes
Normally replaceable-slightly different:
  1P39
First Source (s)
1949 : -- Original-techn. papers.
Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Technology / Measurement
Filament
Description

Side-on type having blue-sensitive S-4 response. Wavelength of maximum spectral response is 4000 +/- 500 angstroms. Makes use of a semicylindrical photocathode, and has a direct interelectrode capacitance of 2.6 picofarads.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 33 x 78 x mm / 1.30 x 3.07 x inch
Weight 26 g / 0.92 oz
Tube prices 2 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   RCA Phototubes and Photocells PT-60
rca_phototube_fig6~~3.png
929: RCA Phototubes 1941
David Erali
929_sock.png 929: elektron taschenbuch 1952
Heinz Höger

Just Qvigstad 		929.png
929: Manufacturer's Literature
Emilio Ciardiello
More ...

Collection of

Emilio Ciardiello (I)
George Papaiz (CDN)
Ulrich Fieseler (D)
 
929.jpg

929
 
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