• Country
• Germany

• Manufacturer / Brand
• Tonfunk GmbH; Karlsruhe

• Year
• 1955/1956

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 160153

• Number of Tubes
• 6

• Valves / Tubes
• EC92 ECH81 EF85 EABC80 EM80 EL84

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Violetta W231/3D - Tonfunk GmbH; Karlsruhe

• Dimensions (WHD)
• 550 x 350 x 240 mm / 21.7 x 13.8 x 9.4 inch

• Notes
• Es gibt ein Prospektblatt mit 231/1D. Das scheint ein Druckfehler zu sein. Die Abbildung zeigt einwandfrei seitliche 3D-Schallöffnung.

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 570 models, 333 with images and 239 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tonfunk GmbH; Karlsruhe