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ID = 1751
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Diode-Tetrode 
Identical to B2044 = CT44 = SD20 = RENS1854 = AN2127
Similar Tubes
Normally replaceable-slightly different:
  DS2218 ; NDS182
Heater different:
First Source (s)
Apr.1933 : Philips Bulletin
Successor Tubes 1938   EBF2  

Base Europe 6-Pin B6 (Hx B) 1933 (Codex=Lc) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 20 Volts / If 0.18 Ampere / Indirect / Specified current DC = (Series working)
Information source L'ABCDaire des lampes de TSF des jeunes années   p. 30
Babani, International Radio Tube Encyclopaedia   p. 54 & 55
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

B2044: Internet
Miguel Angel Trujillo-Rodriguez

12_4.png B2044: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
B2044: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

More ...
Usage in Models 1= 1932? ; 1= 1932 ; 1= 1933?? ; 1= 1933? ; 29= 1933 ; 10= 1934 ; 8= 1935 ; 1= 1950??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):52

Collection of



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