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ID = 13612
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Tube type:  Triode, vacuum   Universal 
Identical to 4215A = 215A = Wecovalve = CW1344 = VT-5 = CW-1344 = R215A = 215A_Nissl = G125A = D-98677 = Wecovalve_A = OR1
Similar Tubes
Normally replaceable-slightly different:
  4001A_STC ; H125A ; Peanut
Other base:
  4215AB ; 4215_AB ; Wecovalve_4pin
Other base and data slightly different:
First year 1923 Saga of the Vacuum Tube, Tyne page 370ff

Base SPECIAL TUBEBASE in general
Filament Vf 1.1 Volts / If 0.25 Ampere / Direct / Battery =

For the 4215A, which is similar to the American 215A, ST&C offered an adapter to fit the European B4 socket. There was also the parallel type 4215AB which was mounted on a B4 socket. Tyne, p.370.

Information source Taschenbuch zum Röhren-Codex 1948/49   
Saga of the Vacuum Tube, Tyne   

wecosockel.gif 4215A: KoBi
Konrad Birkner † 12.08.2014

4215A: own collection
Peter den Boer

More ...
Usage in Models 2= 1923? ; 1= 1925?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of



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