• Country
• Japan

• Manufacturer / Brand
• Toyo Radio Co., Ltd.; Tokyo

• Year
• 1972 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 339474

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

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

• Details
• Special Tape or Cassette-Format

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Quadio CHR-740 - Toyo Radio Co., Ltd.; Tokyo

• Shape
• Book-shelf unit.

• Notes

• Quadio 4-channel/2 channel 8-track stereo tape player with AM/FM/FM stereo receiver.

• Price in first year of sale
• 349.95 USD

• Mentioned in
• Radio Electronics (U.S. Magazine) (Advertisment October 1972, page 79)

• Literature/Schematics (1)
• -- Original prospect or advert (Billboard (magazine), Jan. 20, 1973, page 31)

• Author
• Model page created by David Erali. See "Data change" for further contributors.

• Other Models

• Here you find 17 models, 17 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Toyo Radio Co., Ltd.; Tokyo