• Country
• United States of America (USA)

• Manufacturer / Brand
• Wollensak 3M; St. Paul, Minnesota

• Year
• 1973

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 259405

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Alternating Current supply (AC) / 120 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: 4780 - Wollensak 3M; St. Paul,

• Shape
• Book-shelf unit.

• Notes

• Wollensak Toploading 4-Track Stereo Cassette Deck Model 4780.
  Dolby NR

• Author
• Model page created by Franz Scharner. See "Data change" for further contributors.

• Other Models

• Here you find 23 models, 18 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wollensak 3M; St. Paul, Minnesota