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Information - Help 
ID = 54308
Tube type:  Oscilloscope CRT, picture tube   Indication 
Identical to 5FP7A
Similar Tubes
Normally replaceable-slightly different:
  5FP14A ; 5FP7
First Source (s)
25.May.1948 : Electron Tube Registration List
Predecessor Tubes 5FP7  

Base Octal (Int.Octal, IO) K8A, USA 1935 Sidecontact.
Was used by Radar
Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect

5" screen, magnetic focus and deflection. Supersedes 5FP7 with better spot focusing.

Initial RCA release with fully populated octal base. Since 1951 a variant using a B5-80, 5-pin populated octal base was registered to Sylvania.

Dimensions (WHD)
incl. pins / tip
128 x x 292 mm / 5.04 x x 11.50 inch
Information source - - Manufacturers Literature   RCA Brochure 1966
5FP7A: Manufacturer's Literature
Emilio Ciardiello


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