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S217

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ID = 10232
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Vacuum Pentode   Audio Frequency   Controlling (mu) 
Identical to S217

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 =
Description

This tube is a variable Mu pentode.

 
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 177, p. 306
- - Manufacturers Literature   Undated tube data sheet
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

45.png S217: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad

Collection of

 
s217_01_1.jpg

 

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