• Country
• Germany

• Manufacturer / Brand
• Maretrans-Radio-Company GmbH; Berlin, Leipzig

• Year
• 1923/1924

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 15920

• Number of Tubes
• 4

• Valves / Tubes

• Main principle
• TRF without regeneration

• Wave bands
• Broadcast (MW) and Long Wave.

• 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: 4-Röhrenempfänger - Maretrans-Radio-Company GmbH;

• Shape
• Tablemodel, slant panel.

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Info Dr. H. Börner without schematic

• Mentioned in
• Historische Radios Band III (176")

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 6 models, 4 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Maretrans-Radio-Company GmbH; Berlin, Leipzig