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ID = 11332
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Dual-Grid Tetrode   Power/Output 
  Ca. 1925 up to 1945 very rare. ***
Identical to LA = 6A4 = 6A4/LA
Similar Tubes
Normally replaceable-slightly different:

Base UY-Base, 5 Pins (USA, April 1927) (Codex=Hy)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Direct / Parallel / series AC/DC

Primarily made by Raytheon with the "4 pillar" element structure. Also made by Sylvania and other manufacturers. Tube is used in the output stage of automobile/car radios.

Literature Taschenbuch zum Röhren-Codex 1948/49   
Essential Characteristics, GE 1973   
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
-- Collector info (Sammler)
LA: Fin Stewart collection
Fin Stewart

LA: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe


Usage in Models 1= 1933?? ; 1= 1933 ; 1= 1934 ; 1= 1935??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):4

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