• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1967/1968

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 163843

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

• Number of Transistors
• 8

• Semiconductors
• 2SC403 2SC401 2SC404 2SC404 2SC402 2SC401 2SB379 2SB379 1T23 1T23

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 cm = 2.4 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 4R-52 - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 175 x 90 x 35 mm / 6.9 x 3.5 x 1.4 inch

• Notes

• Supplied with earphone and leather case

  MW 530-1605 Kc (kHz), SW 3,9-12 Mc (MHz).

• Net weight (2.2 lb = 1 kg)
• 0.380 kg / 0 lb 13.4 oz (0.837 lb)

• Price in first year of sale
• 66.75 AUS $

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

• Literature/Schematics (1)
• J.R. Publications Transistor Radio Service Handbook (Group C4, 1967, Page S5b.)

• Author
• Model page created by Salvador Galan-Ocaña. 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