• Country
• Japan

• Manufacturer / Brand
• Sharp; Osaka

• Year
• 1964/1965

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 93325

• • alternative name: Hayakawa Electric Co.Ltd.

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

• Number of Transistors
• 9

• Semiconductors
• 2SA357 2SA15 2SA12 2SA12 1N34A 2SB75 2SB75 2SB75 2SB156 2SB156

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

• 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) - elliptical

• Power out
• 0.3 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 9 Transistor BP-485 - Sharp; Osaka

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

• Dimensions (WHD)
• 3.5 x 6.25 x 1.5 inch / 89 x 159 x 38 mm

• Notes

• Sharp Model BP485

    Nine transistor radio. Slim design is achieved by the use of a carrying handle which converts to stand. Complete with leather case.
    Specifications: nine transistors, one band superheterodyne system with AGC. Tuning range 530 - 1650 kC/s (kHz). Intermediate frequency 455 kC/s (kHz).Output 210 mW undistorted. Speaker 4" x 2⅜". Power source 3 x UM3A (AA Cells) batteries.

  This model sold in Australia during 1964 & 1965 for £31/10/-. Price includes batteries.

• Net weight (2.2 lb = 1 kg)
• 1.7 lb (1 lb 11.2 oz) / 0.772 kg

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 25, 1965

• Mentioned in
• Mingay's Price Service (Feb 1965 & Aug 1965.)

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 1327 models, 1200 with images and 514 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sharp; Osaka