• Country
• Germany

• Manufacturer / Brand
• Tonfunk GmbH; Karlsruhe

• Year
• 1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 25165

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 7

• Valves / Tubes
• EF42 EF42 ECH41 EBF80 EM4 EL41 AZ1

• Main principle
• Superheterodyne (common); ZF/IF 472/10,7 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)     5 FM circuit(s)

• Wave bands
• Broadcast, Long Wave, Short Wave plus FM or UHF.

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

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• from Radiomuseum.org
• Model: Violetta UKW V - Tonfunk GmbH; Karlsruhe

• Notes
• UKW-Demodulation mittels Flankengleichrichter. Kopplung des ZF-Verstärkers bei UKW mit Einzelkreisen.

• External source of data
• Rutishauser/EE

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Other Models

• Here you find 570 models, 334 with images and 240 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tonfunk GmbH; Karlsruhe