• Country
• Japan

• Manufacturer / Brand
• Sharp; Osaka

• Year
• 1968–1972

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 218361

• • alternative name: Hayakawa Electric Co.Ltd.

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

• Number of Transistors
• 12

• Semiconductors
• 2SA234 2SA12 2SA12 2SA234 2SB75 2SB75 2SB75 2SB77 2SB77 2SB77 2SB77 2SB77 1N34

• Main principle
• Superheterodyne (common)

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

• Power type and voltage
• Dry Batteries / D: 4 x 1.5 Volt

• Loudspeaker
• 3 Loudspeakers

• Power out
• 0.8 W (unknown quality)

• from Radiomuseum.org
• Model: BY-157A - Sharp; Osaka

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

• Dimensions (WHD)
• 10.5 x 5.5 x 2.125 inch / 267 x 140 x 54 mm

• Notes

• Sharp Model BY-157A

  A 12-transistor, 3-band portable radio (with carry strap). Tuning range: MW, 530~1650 kHz; SW1, 2.3~7.3 MHz; SW2, 7.3~22 MHz. Speakers: one 3½" and 2⅜". Output 800 mW. Powered by four UM-1 batteries or equivalent. (MINGAY'S PRICE SERVICE)

• Net weight (2.2 lb = 1 kg)
• 2.4 lb (2 lb 6.4 oz) / 1.090 kg

• Price in first year of sale
• 94.50 AUS $

• Mentioned in
• Mingay's Price Service (Aug 1970 to Aug 1972.)

• Literature/Schematics (1)
• J.R. Publications Transistor Radio Service Handbook (Group C5, 1968, Page S183.)

• Author
• Model page created by Stephen Higgins. See "Data change" for further contributors.

• Other Models

• Here you find 1333 models, 1204 with images and 517 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sharp; Osaka