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KT2

Information - Help 
ID = 3039
       
Country:
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:
  PT2
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 =
Description

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 Taschenbuch zum Röhren-Codex 1948/49   
 
vr118kt2ph10r.jpg
KT2: Patrice ZEISSLOFF
Patrice Zeissloff

 
606_1.png
KT2: Telefunken Werkstattbuch
Wolfgang Bauer

 
kt2_data.png
KT2: MARCONI RECEIVING VALVES, LONDON, 1938
Jose Casas-Avalos


from Just Qvigstad

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

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


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