• Country
• Germany

• Manufacturer / Brand
• Tonfunk GmbH; Karlsruhe

• Year
• 1952/1953

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 19345

• Number of Tubes
• 5

• Valves / Tubes
• EF40 6SC7 6L6 6L6 EZ12

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Record Player (not changer)

• Power type and voltage
• Line / Batteries (any type) / 110; 220 / 6; 12 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 20 W (unknown quality)

• from Radiomuseum.org
• Model: Verstärker KAV20 [mit Netzzusatz] - Tonfunk GmbH; Karlsruhe

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 340 x 125 x 300 mm / 13.4 x 4.9 x 11.8 inch

• Notes
• Mikrofoneingang; Ausgangsimpedanz: 5 und 15 Ohm.

• Net weight (2.2 lb = 1 kg)
• 7 kg / 15 lb 6.7 oz (15.419 lb)

• Price in first year of sale
• 1,250.00 DM

• External source of data
• Erb

• Source of data
• Kat.d.Rundf.GrossH.1952/53 / Radiokatalog Band 2, Ernst Erb

• 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