• Country
• Ireland

• Manufacturer / Brand
• Sony Ireland, Shannon

• Year
• 1960

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 77890

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

• Number of Transistors
• 7

• Semiconductors
• 2SC73 2SC76 2SC76 2SD64 2SD66 2SB48 2SB48

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 3 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 11.5 cm = 4.5 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR-7120 - Sony Ireland, Shannon

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 284 x 175 x 100 mm / 11.2 x 6.9 x 3.9 inch

• Notes
• The Sony TR-7120 - sometimes written as TR-712/0 is the Sony 712 made in Shannon, Ireland instead of Japan. Not because of the Irish but for the cheap manufacturer price these models were inferior quality to their "originals". Same situation can be seen on TR-609 versus TR-6090 (or 609/0), TR-717 and its Irish twin, the TR-7170.
  
  Alternative transistor complement:
  2SC73 2SC76 2SC76 2SD65 2SD65 2SB51 2SB51

• Net weight (2.2 lb = 1 kg)
• 1.4 kg / 3 lb 1.3 oz (3.084 lb)

• Source of data
• -- Schematic

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 613 Folder 15 1-1963)

• Author
• Model page created by Robert Schmalstieg. See "Data change" for further contributors.

• Other Models

• Here you find 8 models, 7 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Ireland, Shannon