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S218

Information - Help 
ID = 10233
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to S218
Similar Tubes
Normally replaceable-slightly different:
  KF1
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe 7-Pin C7A (Hx C, C7, C) 1933 (Codex=Lr) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =
Information source Babani, International Radio Tube Encyclopaedia   p. 140 & 131
- - Manufacturers Literature   Undated tube data sheet
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

45_3.png S218: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 1= 1935

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 

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