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L4

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ID = 14403
       
Country:
Austria
Brand: Kremenezky, Johann (Sator); Wien,(Röhrenhersteller)
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to L4 = B405 = L4_Sator
Similar Tubes
Normally replaceable-slightly different:
  420LL ; E420 ; P414 ; RE124
First Source (s)
Mar.1927 : Funk Bastler 1927 Heft 39

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Battery =
Description

This type is also branded Sator and Orion.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
45 x 97 x 45 mm / 1.77 x 3.82 x 1.77 inch
Weight 52 g / 1.83 oz
Literature Taschenbuch zum Röhren-Codex 1948/49   Sator Röhrenliste 1934
 
l4_kremenezky.jpg
L4: Sammlung EE
Ernst Erb

 
1_38.png
L4: Telefunken Werkstattbuch
Wolfgang Bauer

 
l4_kennlinie.png
L4: Kremenezky Liste März 1929
Thomas Lebeth


Usage in Models 1= 1928??

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


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