• Country
• Austria

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

• Year
• 1929/1930

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 9214

• • alternative name: Vocaphon-Radio-Vertriebsgesellschaft

• Number of Tubes
• 1

• Valves / Tubes

• Details
• Power: B-Battery Eliminator

• Power type and voltage
• Alternating Current supply (AC) / 110/220 Volt

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: 21720 - Jacobi; Radio-, Telegraphen-

• Notes
• 300V, 60mA, 4 Spannungsstufen

• Net weight (2.2 lb = 1 kg)
• 5.3 kg / 11 lb 10.8 oz (11.674 lb)

• Price in first year of sale
• 185.00 öS

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• 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