• Year
  • 1943/1944
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 176743

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 1
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries / 90 & 1,5 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Power out
  • 0.5 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Telephone Repeater EE-89-A - FTR, Federal Telephone & Radio
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 160 x 190 x 240 mm / 6.3 x 7.5 x 9.4 inch
  • Notes
  • Zwischenverstärker (Repeater) für lange Feld - Telefonleitungen mit einer Verstärkerröhre, eine Ersatzröhre steckt im Gerät in einem Röhrensockel.
  • Net weight (2.2 lb = 1 kg)
  • 3.620 kg / 7 lb 15.6 oz (7.974 lb)
  • Source of data
  • - - Data from my own collection
  • Mentioned in
  • - - Manufacturers Literature
  • Literature/Schematics (1)
  • - - Data from my own collection
  • Author
  • Model page created by Anton Gämperle. See "Data change" for further contributors.

 Collections | Museums | Literature

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The model Telephone Repeater is part of the collections of the following members.

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