• Year
  • 1929/1930
  • Category
  • Power supply/conditioner or battery or charger 
  • Radiomuseum.org ID
  • 9214
    • alternative name: Vocaphon-Radio-Vertriebsgesellschaft

 Technical Specifications

  • 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

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