• Country
• Germany

• Manufacturer / Brand
• Deutsche Ultraphon AG; Berlin

• Year
• 1930 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 17472

• Number of Tubes
• 5

• Valves / Tubes
• REN904 REN904 RE134 RE604 RE604

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Power type and voltage
• Alternating Current supply (AC)

• from Radiomuseum.org
• Model: Ultraphonic W - Deutsche Ultraphon AG; Berlin

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Röhren in FS-Bestückungstabellen

• Other Models

• Here you find 21 models, 18 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Deutsche Ultraphon AG; Berlin