• Country
• Germany

• Manufacturer / Brand
• Esra, Süddeutsche Rundfunk-Apparate GmbH, München

• Year
• 1924 ?

• Category
• Detector-Radio (Crystal or diode, without tubes/transistors)

• Radiomuseum.org ID
• 119259

• Main principle
• Crystal or Solid State Detector; Crystal-detection 1 circuit (no tubes)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Detektor-Empfänger - Esra, Süddeutsche Rundfunk-

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 110 x 60 x 195 mm / 4.3 x 2.4 x 7.7 inch

• Source of data
• - - Data from my own collection

• Author
• Model page created by Günther Hellauer. See "Data change" for further contributors.

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Esra, Süddeutsche Rundfunk-Apparate GmbH, München