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B262

Information - Help 
ID = 2470
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Screen-grid Tetrode   Universal 
  Ca. 1925 up to 1945 rare.
Identical to B262 = S22
Similar Tubes
Other shape (e.g. bulb type):
  SX2
Normally replaceable-slightly different:
  215SG ; SG215
Other base:
  B262_UX4
First year 1932 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin (A, 4A, B4, since 1914) Top contact screw type
Filament Vf 2 Volts / If 0.18 Ampere / Direct / Battery =
Literature - - Manufacturers Literature   
 
b262~~1.jpg
B262: R.O.
Rudolf Osterkamp

 
3_4.png
B262: Telefunken Werkstattbuch
Wolfgang Bauer

 
b262_spec.png
B262: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 1= 1934? ; 7= 1934 ; 1= 1935? ; 3= 1935 ; 3= 1936

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):15


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