• Country
• Germany

• Manufacturer / Brand
• Klein & Hummel; Stuttgart-Kemnat (Marke: K+H, Telewatt, Schwabenradio)

• Year
• 1967–1978

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 77881

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

• Number of Transistors
• 20

• Semiconductors
• BC109 BC107 40314 40319 2N3055 BA103 B40C2200

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

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

• Power out
• 60 W (90 W max.)

• Material
• Wooden case

• from Radiomuseum.org
• Model: HiFi Verstärker ES 20 - Klein & Hummel; Stuttgart-

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 412 x 110 x 265 mm / 16.2 x 4.3 x 10.4 inch

• Notes

• K+H HiFi Stereo Verstärker ES 20

  Dauertonleistung 2x 30 W, Musikleistung 2x 45 W.
  Klirrgrad 0,3 % bei 1 kHz, Nennleistung und Aussteuerung beider Kanäle.
  Halbleiterliste: pro Typ nur einmal (20 Transistoren, 6 Dioden BA103, 1 Gleichrichter).

  Passender Tuner: K+H ET 20

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

• Price in first year of sale
• 838.00 DM

• Source of data
• - - Manufacturers Literature / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Prospekt 1973, Bedienungsanleitung, Preisliste 1969

• Literature/Schematics (1)
• HiFi-Jahrbuch 5; S. 123, Verlag G. Braun Karlsruhe 1970

• Literature/Schematics (2)
• -- Original-techn. papers.

• Author
• Model page created by Peter Böhm. See "Data change" for further contributors.

• Other Models

• Here you find 161 models, 152 with images and 104 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Klein & Hummel; Stuttgart-Kemnat (Marke: K+H, Telewatt, Schwabenradio)