• Country
• Austria

• Manufacturer / Brand
• Technica; Wien: Marke Inra

• Year
• 1929/1930

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 10789

• • alternative name: Rabinowitsch & Co
  • Brand: Inra

• Number of Tubes
• 2

• 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: Inra 306 - Technica; Wien: Marke Inra

• Notes
• Universalheizanode [Kat. Primoris 1930]

• Price in first year of sale
• 300.00 öS +

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Other Models

• Here you find 110 models, 13 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Technica; Wien: Marke Inra