• Country
• Germany

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

• Year
• 2000 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 258567

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Line plus power jack, mostly with battery or storage battery / AC 230 /DC 24 Volt

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

• Power out
• 250 W (undistorted)

• Material
• Metal case

• from Radiomuseum.org
• Model: Endverstärker AK 255 - Klein & Hummel; Stuttgart-

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 483 x 133.2 x 335 mm / 19 x 5.2 x 13.2 inch

• Notes

• ELA-Endverstärker, 250 W Sinus, volle Leistung auch bei Batteriebetrieb.

  Ausgang 50/70/100V.

  2 umschaltbare, getrennt regelbare, trafosymmetrische erdfreie Eingänge.

• Net weight (2.2 lb = 1 kg)
• 14.5 kg / 31 lb 15 oz (31.938 lb)

• Author
• Model page created by a member from D. 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)