• Country
• Japan

• Manufacturer / Brand
• Sharp; Osaka

• Year
• 1975 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 219370

• • alternative name: Hayakawa Electric Co.Ltd.

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz

• Wave bands
• Broadcast (BC) and FM or UHF.

• Details
• Cassette-Recorder or -Player

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 cm = 3.1 inch

• Power out
• 0.9 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: RDX-404 - Sharp; Osaka

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

• Dimensions (WHD)
• 360 x 208 x 70 mm / 14.2 x 8.2 x 2.8 inch

• Notes
• RDX 404, mit 2 Spur Kassettenrecorder und 2 Band Superhet, Empfangsbereiche: MW 530- 1605 kHz, und FM 88- 108 MHz.

• Net weight (2.2 lb = 1 kg)
• 2.8 kg / 6 lb 2.7 oz (6.167 lb)

• Mentioned in
• Original Sharp Service Unterlagen

• 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