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B252

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ID = 2468
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Screen-grid Tetrode 
Identical to B252
First year 1931 -- Schematic

Base Europe 4-Pin (A, 4A, B4, since 1914) Top contact with a cap
Filament Vf 2 Volts / If 0.15 Ampere / Direct
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
b252.jpg
B252: B.W.
Wolfgang Bauer

 
3_44.png
B252: Telefunken Werkstattbuch
Wolfgang Bauer

 

Usage in Models 2= 1931 ; 1= 1933

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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