• Country
• Japan

• Manufacturer / Brand
• Nippon Columbia Co.; Tokyo

• Year
• 1968 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 160955

• • Brand: Columbia

• Number of Transistors
• 36

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC)

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

• Power out
• 50 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Columbia 7AT-20 - Nippon Columbia Co.; Tokyo

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 450 x 96 x 254 mm / 17.7 x 3.8 x 10 inch

• Notes
• AM/FM Stereo Receiver with 25 Watts per channel RMS. (Music 2 x 36 Watts).
  36 Transistors, 1 FET, 20 Diodes.

• Net weight (2.2 lb = 1 kg)
• 6.5 kg / 14 lb 5.1 oz (14.317 lb)

• Price in first year of sale
• 46,500.00 JPY

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

• Other Models

• Here you find 27 models, 18 with images and 7 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Nippon Columbia Co.; Tokyo