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ID = 28618
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Triode, vacuum   Power/Output 
Identical to LS3_MO
First year 1923 British Radio Valves - The Vintage Years, Thrower page 34
First Source (s)
1923 : British Radio Valves - The Vintage Years, Thrower p.34

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 4 Volts / If 0.7 Ampere / Direct / Battery =
Dimensions (WHD)
incl. pins / tip
x 115 x 55 mm / x 4.53 x 2.17 inch
Tube prices 1 Tube prices (visible for members only)
Information source - - Manufacturers Literature   1924
British Radio Valves - The Vintage Years, Thrower   Pages 34 and 117
The Saga of Marconi Osram Valve
Robert Gillespie

LS3_MO: KoBi
Konrad Birkner † 12.08.2014

LS3_MO: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

from Just Qvigstad

Usage in Models 3= 1923 ; 1= 1924?

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

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