• Country
• United States of America (USA)

• Manufacturer / Brand
• 3M, Lake Superior

• Year
• 1964 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 334974

• Number of Tubes
• 5

• Valves / Tubes
• 6EU7 unknown_Tube 6C4 7868 7868

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Radio Control (+Remote Wire etc)

• Power type and voltage
• Alternating Current supply (AC) / 110-125 Volt

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

• Power out
• 35 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Background Music Power Amplifier - 3M, Lake Superior

• Shape
• Tablemodel, low profile (big size).

• Notes

• PA amplifier with input for the 3M "Cantata" 700 cartridge player.

  Similar to Precision Electronics S35.

• Author
• Model page created by Gottfried Silberhorn. See "Data change" for further contributors.

• Other Models

• Here you find 18 models, 18 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from 3M, Lake Superior