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ID = 4239
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Raytheon Mfg. Co.; Cambridge, MA 
Tube type:  Vacuum Pentode   Power/Output 
Identical to 2E36 = CK502AY
Similar Tubes
Normally replaceable-slightly different:
First Source (s)
10.Nov.1945 : Electron Tube Registration List rec. 450
Predecessor Tubes 2E35  

Base Subminiatur (wire-ends, flat) B5A (Codex=sp)
Was used by Radio/TV-reception etc.
Filament Vf 1.2 Volts / If 0.03 Ampere / Direct / Battery =
Description Same as 2E35, but wires cut for socket insertion. 
Tube prices 1 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  2E36: Belmont Boulevard Pocket Radio
Günther Stabe
2E36: scc
Christian Schaufelberger

2E36: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

2E36: Manufacturer's Literature
Emilio Ciardiello

Usage in Models 1= 1945 ; 2= 1948??

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

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