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4B/550E

Information - Help 
ID = 82912
       
Country:
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Tube type:  Transmitting Tetrode, air cooled 
Identical to 4B/550E

Filament Vf 26 Volts / If 1.2 Ampere / Half indirect
Dimensions (WHD)
incl. pins / tip
57 x 146 x mm / 2.24 x 5.75 x inch
Weight 200 g / 7.05 oz
Information source -- Collector info (Sammler)   

Collection of

 
4_b_550_e.jpg

 

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