• Country
• Austria

• Manufacturer / Brand
• Jacobi; Radio-, Telegraphen- und Telephonwerke H. Jacobi & Co.; Wien

• Year
• 1929–1931

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

• Radiomuseum.org ID
• 9222

• • alternative name: Vocaphon-Radio-Vertriebsgesellschaft

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

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: Megadyn-Detektor 21321 - Jacobi; Radio-, Telegraphen-

• Notes
• ohne Knöpfe oben.

• Net weight (2.2 lb = 1 kg)
• 1.6 kg / 3 lb 8.4 oz (3.524 lb)

• Price in first year of sale
• 38.00 öS

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• [Primoris 1930/31B]

• Other Models

• Here you find 53 models, 32 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Jacobi; Radio-, Telegraphen- und Telephonwerke H. Jacobi & Co.; Wien