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4S10_Standard

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ID = 61968
       
Country:
Sweden
Brand: Standard Radiofabrik A.B.; Ulvsunda
Developer: Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München 
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 very rare. ***
Identical to 4S10_Standard = E2c

Base Europe 7-Pin C7A (Hx C, C7, C) 1933
Was used by Telephony
Filament Vf 18 Volts / If 0.36 Ampere / Direct / Specified voltage AC/DC
Information source - - Manufacturers Literature   September 1950


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