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L2/D

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ID = 14401
       
Country:
Great Britain (UK)
Brand: Lissen Ltd.; London and Richmond, Surrey
Tube type:  Diode-Triode   Audio Frequency 
Identical to L2/D
Similar Tubes
Normally replaceable-slightly different:
  TDD2A

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Description

Va<150; Ia=2mA at Vg=-4.5, gm= 1.5mA/V Ra=12k

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1930
History of the British Radio Valve to 1940

s_6_g_17.gif L2/D: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


Just Qvigstad
l2_d.png
L2/D: own collection
Peter den Boer

Usage in Models 1= 1934

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 

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