Antique radios, Old Time Radios

DSB

Country:	Great Britain (UK)		Brand:	MO Valve Co. Ltd.; GB
			Tube type:	Screen-grid Tetrode RF/IF-Stage

Tube ID = 2485

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Identical to	DSB
First year	1932 The Saga of Marconi Osram Valve – (B Vyse and G Jessop 2000)
Predecessor Tubes	DS

Base	Europe 5-Pin (O5A, B5) Top contact screw type
Filament	Vf 16 Volts / If: 0.25 Ampere / -: Indirect / -: Series, DC /
Description	Gm=3.2mA/V at Va=200(max), Vs=80(max)
Literature	- - Manufacturers Literature Taschenbuch zum Röhren-Codex 1948/49

DSB: M.M.
Michael Mischke

Variants

Usage in Models	5= 1932 ; 2= 1933? ; 12= 1933 ; 1= 1934?? ; 9= 1934 ; 3= 1945?
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 32

Variants

O.F.
Otto Frosinn

DSB*Kappe

Obenanschluss-Kappe, andere Kolbenform und keine Außenmetallisierung

26.Mar.2012 Otto Frosinn

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