• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1970 ??

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 233083

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

• Number of Transistors
• 25

• Semiconductors
• 2SC631 2SC633 or. 2SC828 2SD28 unknown_diode 1T243 1T243

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 12 Volt

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

• Material
• Metal case

• from Radiomuseum.org
• Model: Auto Stereo Cassette-Corder Tapecorder TC-20 - Sony Corporation; Tokyo

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 186 x 73 x 210 mm / 7.3 x 2.9 x 8.3 inch

• Notes

• Sony Car Cassette Player Tapecorder Model TC-20.

  Automatic eject amplifier, the detection circuit is actuated by a MDR (magnetic dependent resistor) MD130E

  Transistors: 4x 2SC631, 15x 2SC633 or 2SC828; 6x 2SD28.
  Unknown diodes: 4x 10D-05.

• Net weight (2.2 lb = 1 kg)
• 3.2 kg / 7 lb 0.8 oz (7.048 lb)

• Literature/Schematics (1)
• - - Manufacturers Literature (Sony TC-20 Service Manual)

• Literature/Schematics (2)
• J.R. Publications Car Radio Service Handbook (Group G7, December 1970, Page S56.)

• Literature/Schematics (3)
• -- Schematic (Schemario Radio Autoradio Mangianastri edizioni "Il Rostro" Italy, March 1971.)

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

• Other Models

• Here you find 4012 models, 3868 with images and 962 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo