• Country
• Germany

• Manufacturer / Brand
• Teladi; Düsseldorf

• Year
• 1950–1952

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 19125

• • alternative name: Diederichs & Kühlwein

• Number of Tubes
• 7

• Valves / Tubes
• 6SJ7 6SJ7 6SN7 6L6 6L6 EZ12 EZ12

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

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

• Power out
• 20 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: TKV20 [US-Röhren] - Teladi; Düsseldorf

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 420 x 240 x 240 mm / 16.5 x 9.4 x 9.4 inch

• Notes
• Der NF-Verstärker TKV20 von Diederichs & Kühlwein, Teladi hat zwei Eingänge; Ausgangsimpedanz 200 Ohm; Frequenzbereich 25 Hz···18 kHz. Siehe auch die Variante mit europäischen Röhren.

• Net weight (2.2 lb = 1 kg)
• 15 kg / 33 lb 0.6 oz (33.04 lb)

• Price in first year of sale
• 590.00 DM

• External source of data
• Erb

• Source of data
• Kat.d. Rundf.Gr.Handel 1950/51 / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Kat.d.Rundf.GrossH.1951/52

• Other Models

• Here you find 105 models, 64 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Teladi; Düsseldorf