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27M2

Information - Help 
ID = 29173
       
Country:
Great Britain (UK)
Brand:
Tube type:  Photomultiplier   Text 
Identical to 27M2
Similar Tubes
Other characteristic (electr. data):
  27M1

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

9 stage Photo-multiplier.
Va<900, Ia<1mA. Current Gain 1,000,000 with 100V per stage.
Peak spectral response 4500 Å.
Base 11pin Sub Magnal
The difference from the 27M1 is a wider tolerance on the dark current and hence a lower Va.

 
Dimensions (WHD)
incl. pins / tip
33 x 94 x mm / 1.30 x 3.70 x inch
Information source - - Manufacturers Literature   Ediswan and Mazda data sheets dated June 1954
 
e_mazda_27m2.jpg
27M2: PROPIA
Pedro Prieto-Castro

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27m2_so.png
27M2: Original data sheet
Anonymous 10 Collector

 
27m2_mazda_data_01.png
27M2: orig. data sheet
Anonymous 10 Collector

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