• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1968–1970

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 248216

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

• Number of Transistors
• 6

• Semiconductors
• 2SA201 2SA198 2SA198 2SB270 2SB187 2SB187 1S426

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / UM3: 4 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.5 inch = 6.4 cm

• Power out
• 0.3 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Six Transistor 4R-56 - Sony Corporation; Tokyo

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Notes

• Supplied with earphone and leather case.

• Price in first year of sale
• 51.60 AUS $

• Mentioned in
• Mingay's Price Service (Aug 1968 to Feb 1970.)

• Literature/Schematics (1)
• J.R. Publications Transistor Radio Service Handbook (Group C5, 1968, Page S5-1.)

• Author
• Model page created by Aldo Andreani. See "Data change" for further contributors.

• Other Models

• Here you find 3913 models, 3773 with images and 947 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo