• Country
• United States of America (USA)

• Manufacturer / Brand
• AMI Entertainment, Automatic Musical Instruments, Rowe AC, Rowe International; Grand Rapids (MI)

• Year
• 1962

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 254797

• • Brand: AMI

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

• Number of Tubes
• 8

• Valves / Tubes
• ECC83 ECC82 ECC83 6AW8 ECC83 ECC82 ECC83 6AW8

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: R-2622C - AMI Entertainment, Automatic

• Shape
• Chassis only or for «building in»

• Notes

• Stereo control amplifier and pre-amplifier for use with power amplifier R-2620A. The necessary power requirements are met by that unit via a 12 pin connector.

  These unit is used in jukebox JAL-200 and JEL-200.

  Designed for magnetic cartridge Shure M-77DA.

  Balance control on the chassis, however the volume control is external.

  The volume potentiometer is part of the cathode circuitry of the output tube and thus the unit won't work without its volume potentiometers attached.

  Properties:

  • Bass boost control switches with 3 settings.
  • Treble cut-off filter switches with 3 positions (10000, 6000 and 3000 Hz).
  • AVC (automatic volume control, a kind of compression).
  • Volume control with Fletcher-Munson characteristic (loudness)

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Radiomuseum Olen Museum. See "Data change" for further contributors.

• Other Models

• Here you find 38 models, 32 with images and 13 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from AMI Entertainment, Automatic Musical Instruments, Rowe AC, Rowe International; Grand Rapids (MI)