• Country
• Japan

• Manufacturer / Brand
• Panasonic, Matsushita, National ナショナル (also tubes); Osaka

• Year
• 1972 ??

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 294368

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

• Number of Transistors
• 11

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Line plus power jack, mostly with battery or storage battery / 90-109; 110-125; 200-219; 220-250 / 9 / C: 6 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 1.5 W (max.)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Portable Cassette Tape Recorder RQ-228 S - Panasonic, Matsushita,

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

• Dimensions (WHD)
• 10 x 2 x 8 inch / 254 x 51 x 203 mm

• Net weight (2.2 lb = 1 kg)
• 5 lb (5 lb 0 oz) / 2.270 kg

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

• Author
• Model page created by Andreas Schulz. See "Data change" for further contributors.

• Other Models

• Here you find 3049 models, 2826 with images and 633 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Panasonic, Matsushita, National ナショナル (also tubes); Osaka