• Country
• Germany

• Manufacturer / Brand
• Graetz Radio GmbH; Berlin-Treptow SO36, Vorkrieg

• Year
• 1928/1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1650

• Number of Tubes
• 5

• Valves / Tubes

• Main principle
• TRF without regeneration; 2 Special; 2 AF stage(s); Neutrodyne

• 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: 5-Röhren-Neutro-Empfänger Nr. 3130 - Graetz Radio GmbH; Berlin-

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes
• 2 Trommelskalen; Mod. ??

• Price in first year of sale
• 330.00 RM

• Source of data
• Katalog Prohaska 1928/29 / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• -- Original prospect or advert (Graetz Prospektblatt 8.1928)

• Other Models

• Here you find 75 models, 71 with images and 60 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Graetz Radio GmbH; Berlin-Treptow SO36, Vorkrieg