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B240

Information - Help 
ID = 3265
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Double Triode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to B240
Similar Tubes
Other base:
  B240_UX6
First year 1934 Tube leaflet collection E.Erb Analysis by original leaflets
Successor Tubes KDD1  

Base Europe 7-Pin (C7A, C, 1933) (Codex=Ls)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =
Description Siehe auch: Zero-Bias- und Triple-Twin- Röhren 
Literature - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   
 
b240_bild1.png
B240: R.O.
Rudolf Osterkamp

 
145.png
B240: Telefunken Werkstattbuch
Wolfgang Bauer

 
b240_spec.png
B240: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 12= 1934 ; 1= 1935? ; 22= 1935 ; 4= 1936 ; 1= 1937??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):40


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