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ID = 28864
Great Britain (UK)
Brand: GEC, General Electric Co.; London
Tube type:  CRT (cathode ray tube, picture tube)   Indication 
Identical to E4103/E/4 = 408A_GEC

Base B9 British 9-Pin
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description Va >600 <1000. ES deflection and focus. Short persistence (0.01ms), blue screen. 
Dimensions (WHD)
incl. pins / tip
39 x 39 x 150 mm / 1.54 x 1.54 x 5.91 inch
Information source - - Manufacturers Literature   
E4103/E/4: M.F.
Manfred Fries


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