• Year
  • 1916
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 203871

 Technical Specifications

  • Number of Tubes
  • 2
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case, TUBES VISIBLE.
  • from Radiomuseum.org
  • Model: Zweiröhren-Niederfrequenzverstärker EV89d [EVN171] - Telefunken Deutschland TFK,
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 200 x 180 x 90 mm / 7.9 x 7.1 x 3.5 inch
  • Notes
  • Zweiröhren-Niederfrequenzverstärker EV89d, ab Oktober 1916 mit zwei EVN171. Verstärkung 150-fach.
  • Net weight (2.2 lb = 1 kg)
  • 3.9 kg / 8 lb 9.4 oz (8.59 lb)
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

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The model Zweiröhren-Niederfrequenzverstärker is part of the collections of the following members.

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