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ID = 3039
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Developer: MO Valve Co. Ltd.; GB 
Tube type:  Screen-grid Tetrode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to KT2 = CV1118 = VR118 = VT136_GPO
Similar Tubes
Normally replaceable-slightly different:
Predecessor Tubes PT2  
Successor Tubes NR39   ARP1  

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Foo)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =

The KT2 was a novel type of power tetrode with a large anode diameter and special spacing of the electrodes in a design to improve linearity and efficiency. (KT= Kinkless Tetrode. It was a step in arriving at the alligned electrode system as in the Beam Tetrodes such as the KT66 which retained efficiency at higher power levels.

Information source The Saga of Marconi Osram Valve   p. 332
History of the British Radio Valve to 1940   p. 147 & 186
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

606_1.png KT2: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
Jose Casas-Avalos

Usage in Models 1= 1932? ; 1= 1934 ; 1= 1935?? ; 1= 1935? ; 2= 1935 ; 6= 1937 ; 3= 1938? ; 9= 1938 ; 6= 1939 ; 5= 1940 ; 1= 1948 ; 1= 1949

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):37

Collection of



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