• Country
• Austria

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

• Year
• 1928

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 9207

• • alternative name: Vocaphon-Radio-Vertriebsgesellschaft

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

• Number of Tubes
• 4

• Valves / Tubes
• A415 A415 B406 B405

• Main principle
• TRF with regeneration; 1 Special; 2 AF stage(s); Neutrodyne

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Megadyne S1 - Jacobi; Radio-, Telegraphen-

• Notes
• Bausatz, 4 Trioden Alternativ zur Röhre B405 kann eine B443 verwendet werden.

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Radio-Amateur Wien (RA, 46), (Österreichischer Radio Amateur, ÖRA) (2810B)

• 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