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PP2018_B7

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ID = 87553
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Vacuum Pentode   Power/Output 
Identical to PP2018_B7
Similar Tubes
Other base:
  PP2018
First Source (s)
1933 : The Valve Museum

Base British-7-Pin, old (M7A)
Was used by Radio/TV-reception etc.
Filament Vf 20 Volts / If 0.18 Ampere / Indirect / Specified current DC = (Series working)
Information source History of the British Radio Valve to 1940   p. 152
Babani, International Radio Tube Encyclopaedia   p. 130 & 131
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

s_385_g_10~~1.gif PP2018_B7: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


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