• Country
• Germany

• Manufacturer / Brand
• Avolta, E. Otto Dietrich AG; Bitterfeld

• Year
• 1925/1926

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 25391

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

• Number of Tubes
• 5

• Valves / Tubes

• Main principle
• TRF with regeneration; ZF/IF 2 kHz

• Tuned circuits
• 3 AM circuit(s)

• 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

• from Radiomuseum.org
• Model: DS5 - Avolta, E. Otto Dietrich AG;

• Dimensions (WHD)
• 500 x 170 x 210 mm / 19.7 x 6.7 x 8.3 inch

• External source of data
• Ernst Erb

• Source of data
• Radio-Henkel: Radiokataolog 1925 / Radiokatalog Band 2, Ernst Erb

• Other Models

• Here you find 6 models, 4 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Avolta, E. Otto Dietrich AG; Bitterfeld