• Country
• Japan

• Manufacturer / Brand
• Sharp; Osaka

• Year
• 1975–1980 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 83885

• • alternative name: Hayakawa Electric Co.Ltd.

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

• Number of Transistors
• 13

• Semiconductors

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

• Tuned circuits
• 8 AM circuit(s)     10 FM circuit(s)

• Wave bands
• Broadcast, Short Wave plus FM or UHF.

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Line / Batteries (any type) / 110-240; (12; 4 × 1,5) Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch

• Power out
• 1.5 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: RD-477H - Sharp; Osaka

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

• Dimensions (WHD)
• 310 x 205 x 89 mm / 12.2 x 8.1 x 3.5 inch

• Notes
• Transistoren: 2× 2SC535, 3× 2SC460, 5× 2SC458, 2SB75, 2× 2SC370.

• Net weight (2.2 lb = 1 kg)
• 3.1 kg / 6 lb 13.3 oz (6.828 lb)

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

• Author
• Model page created by Josef Pilz. See "Data change" for further contributors.

• Other Models

• Here you find 1338 models, 1209 with images and 517 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sharp; Osaka