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B217

Information - Help 
ID = 2467
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to B217
Similar Tubes
Normally replaceable-slightly different:
  A214 ; BY1815 ; PB172
Other base:
  B217_UX4
First year 1931 -- Schematic

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Literature - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   
 
b217_miniwatt_ph1.jpg
B217: Patrice ZEISSLOFF
Patrice Zeissloff

 
1_12.png
B217: Telefunken Werkstattbuch
Wolfgang Bauer

 
b217_spec.png
B217: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 2= 1931 ; 1= 1933 ; 1= 1934? ; 17= 1934 ; 1= 1935? ; 33= 1935 ; 1= 1936? ; 10= 1936 ; 1= 1937?? ; 9= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):76


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