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GN4D

Information - Help 
ID = 30695
       
Country:
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Tube type:  Numerals- and Symbols indicating tube   Indication 
Identical to GN4D

Filament No heater
Description Numerical Indicator Tube with digits 0 to 9. Base B13B. 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
29 x 33 x mm / 1.14 x 1.30 x inch
 
gn4d_itt_gb.jpg
GN4D: Private collection
Emilio Ciardiello

 


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