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Information - Help 
ID = 8919
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  CRT (cathode ray tube, picture tube) 
Identical to 5FP
Successor Tubes 5FP11A   5FP19   5FP7  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vb) Sidecontact.
Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Description 5", magnetic focus and deflection; recessed small-ball cap. 8KV. P1, P4, P5, P7, P11, P14, P15 and P25 phosphor available. 5FP4 was used as view-finder in television cameras.
Also A suffix and B, uprated to 12KV
GE, National Union, General Electric, RCA, Sylvania and Westinghouse among manufacturers. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
Tube Lore (I)
5FP: Tabu Röhren-Codex, 1948
Anonymous 15 Collector


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