• Country
• Germany

• Manufacturer / Brand
• Gerufon-Radio Walter Velten KG, Radiogerätefabrik Quedlinburg; Quedlinburg/Harz (Ostd.)

• Year
• 1952 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 255641

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

• Number of Tubes
• 8

• Valves / Tubes
• EF14 EF12 EF12 EF12 EF12 EL12 EL12 AZ12

• Number of Transistors

• Semiconductors
• Tr.Gl.=Metal-rectif.

• 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
• 20 W (unknown quality)

• from Radiomuseum.org
• Model: Mischpultverstärker 20 W - Gerufon-Radio Walter Velten KG

• Mentioned in
• Lange, Schaltungen der Funkindustrie (Band 3, S. 405)

• Author
• Model page created by a member from D. See "Data change" for further contributors.

• Other Models

• Here you find 41 models, 29 with images and 36 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gerufon-Radio Walter Velten KG, Radiogerätefabrik Quedlinburg; Quedlinburg/Harz (Ostd.)