• Country
• Japan

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

• Year
• 1974/1975

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 131142

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

• Number of Transistors
• 6

• Semiconductors
• 2SB173C 2SB175B 2SB175B 2SB324 2SB324 2SB172A 0A90Z

• 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 / AC 220 / DC 6 / 4 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 9 cm = 3.5 inch

• Power out
• 1 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: National Panasonic RQ-309AS - Panasonic, Matsushita,

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

• Dimensions (WHD)
• 140 x 70 x 260 mm / 5.5 x 2.8 x 10.2 inch

• Notes
• National Panasonic RQ-309AS Cassette Tape Recorder, mono, response 70 - 10.000 Hz, auto-stop, built-in condenser mic. The power rectifier (2 diodes) is a 2SR1K.

• Net weight (2.2 lb = 1 kg)
• 1.8 kg / 3 lb 15.4 oz (3.965 lb)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 3040 models, 2816 with images and 631 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