• Country
• Germany

• Manufacturer / Brand
• Tonfunk GmbH; Karlsruhe

• Year
• 1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 89213

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

• Number of Tubes
• 6

• Valves / Tubes
• EF42 ECH42 EBF80 EL41 EM4 AZ41

• Main principle
• Superheterodyne (common); ZF/IF 472/10700 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; 125; 220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

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

• Notes

• Flankendemodulator für UKW.
  NF-Vorstufe über Triodensystem der EM4.

  Siehe auch Tonfunk Violetta UKW mit EBF2 im ZF-Verstärker.

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Thomas Welti. See "Data change" for further contributors.

• Other Models

• Here you find 569 models, 332 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