• Country
• Germany

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

• Year
• 1974 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 126776

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

• Number of Transistors
• 14

• Semiconductors
• 2N4348 2N4348 BC239 BC307 BC307 2N1893 BC307 BC237 40595 40594 BC237 BC237 BC237 BD228 µA709 µA723 µA709 BA221 BA221 BA221 BA221 BA221 1N4005 1N4005 1N4002 1N4002 BZX55 B80C800 B40C3200

• 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
• 80 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Mono-Mischverstärker M 66 - Klein & Hummel; Stuttgart-

• Dimensions (WHD)
• 440 x 150 x 330 mm / 17.3 x 5.9 x 13 inch

• Notes
• 6-Kanal Mono-Mischverstärker. NF-Ausgang 0,775 Volt. 50-, 70-, 100-Volt-Ausgang. 80 Watt Musikleistung, 60 Watt Sinusleistung.

• Net weight (2.2 lb = 1 kg)
• 14 kg / 30 lb 13.4 oz (30.837 lb)

• Mentioned in
• Funkschau (3.1980)

• Literature/Schematics (1)
• -- Original-techn. papers. (M66, Halbleiter-Stückliste von 25.04.74)

• Literature/Schematics (2)
• - - Manufacturers Literature (K+H-Prospekt, ELA-Programm 1975)

• Author
• Model page created by Karlheinz Fischer. 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)