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ID = 2773
Brand: Kremenezky, Johann (Sator); Wien,(Röhrenhersteller)
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to L43
Similar Tubes
Normally replaceable-slightly different:
  B443_4pin ; P420 ; RES174d
Other base:
  L43_5pin ; P420_5pin ; PP415

Base Europe 4-Pin B4 + side contact (Codex=Ero)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Specified voltage AC/DC

This type is also branded Sator and Orion.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
55 x 95 x mm / 2.17 x 3.74 x inch
Weight 65 g / 2.29 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   

5_3.png L43: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
L43: own collection
Peter den Boer

More ...
Usage in Models 6= 1930 ; 2= 1931 ; 1= 1932 ; 1= 1933 ; 2= 1934 ; 2= 1935

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):14

Collection of



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