Antique radios, Old Time Radios

L410

Country:	Germany		Brand:	Valvo Radioröhrenfabrik GmbH; Hamburg
			Tube type:	TRIODE (Detail uncertain) Power/Output

Tube ID = 2023

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Identical to	L410 = B406
Similar Tubes	Normally replaceable-slightly different: D15
First year	1927 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Sep.1927 : Funk Bastler (, Der...) Heft 39

Base	Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament	Vf 4 Volts / If: 0.15 Ampere / -: Direct /
Tube prices	1 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49

L410
Roland Biesler

L410: Telefunken Werkstattbuch
Wolfgang Bauer

L410: Valvo-Röhren-Daten 1934
Jacob Roschy

Usage in Models	1= 1928?? ; 5= 1928? ; 4= 1928 ; 1= 1929 ; 1= 1930? ; 1= 1932?? ; 9= 1932
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 22

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