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27M1

Information - Help 
ID = 29163
       
Country:
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Tube type:  Photomultiplier   Text 
Identical to 27M1 = CV337 = 931A
Similar Tubes
Normally replaceable-slightly different:
  931VA ; CV2696
Other characteristic (electr. data):
  27M2

Base Sub-Magnal 11 pin
Was used by Technology / Measurement
Filament
Description

9 stage Photo-multiplier.
Va<950, Ia<1mA. Current Gain 1,000,000 with 100V per stage.
Peak spectral response 4500 Å.
Base 11pin Sub Magnal.

 
Dimensions (WHD)
incl. pins / tip
33 x 94 x mm / 1.30 x 3.70 x inch
Weight 55 g / 1.94 oz
Tube prices 2 Tube prices (visible for members only)
Information source - - Manufacturers Literature   Ediswan and Mazda data sheets dated June 1954
Babani, International Radio Tube Encyclopaedia   Pages 360 & 361
 
aei_27m1.jpg
27M1
Roy Johnson

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27m1_so.png
27M1: Original data sheet
Anonymous 10 Collector

 
27m1_mazda_data_01.png
27M1: orig. data sheet
Anonymous 10 Collector

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