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Telefunken EVN171 triode
Telefunken EVN171 triode

Telefunken EVN171 triode

Date1915
Inventory NumberVT0279
ClassificationVacuum Tube
Maker Telefunken founded 1903
Cultural Region
    Place of Origin
      Dimensions9.7 × 4.5 × 4.5 cm (3 13/16 × 1 3/4 × 1 3/4 in.)
      Description"HANGING FIL, HELICAL GRID ""TEST 3/11/17"""
      FunctionRadio
      Telefunken RS5C11A XM triode
      Telefunken RS5C11A XM triode
      Telefunken
      Date: 1918
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      Image Not Available for Telefunken EF11 variable mu pentode cutaway
      Telefunken EF11 variable mu pentode cutaway
      Telefunken
      Date: circa 1945
      Object number: VT5228
      Image Not Available for Telefunken EF12 pentode
      Telefunken EF12 pentode
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      Date: circa 1945
      Object number: VT5227
      Telefunken RE82 tetrode
      Telefunken RE82 tetrode
      Telefunken
      Date: 1925
      Object number: VT0897
      VTNBK 4/500
      triode
      TeKaDe
      Date: 1917
      Object number: VT0277
      Green wooden storage box containing transformers
      Green wooden storage box containing transformers
      General Radio Company
      Date: 1920-1930
      Object number: RS0487
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      triode
      Telefunken
      Date: 1924
      Object number: VT0284
      VTNBK 2/176
      triode
      Telefunken
      Date: 1925
      Object number: VT1365
      VTNBK 4/502
      triode
      Siemens & Halske AG
      Date: 1919
      Object number: VT0278
      Micromho dynamic mutual conductance tube tester
      Micromho dynamic mutual conductance tube tester
      Hickok Electrical Instrument Company
      Date: 1955-1965
      Object number: 1998-1-0879
      Split Anode Magnetron
      Split Anode Magnetron
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      Object number: VT0285
      VTNBK 3/458
      aplit anode magnetron
      Telefunken
      Object number: VT0286