• Country
• Japan

• Manufacturer / Brand
• Hitachi Ltd.; Tokyo

• Year
• 1973

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 141478

• • alternative name: Hitachi Sales Corp. of America

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

• Number of Transistors
• 3

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Line / Batteries (any type)

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 7.7 cm = 3 inch

• Power out
• 1 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TRQ-257 - Hitachi Ltd.; Tokyo

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 136 x 60 x 250 mm / 5.4 x 2.4 x 9.8 inch

• Notes
• Mono-Kassetten-Recorder mit versenkbarem Tragegriff, Auto-Alarm-Stop-System und automatischer Aussteuerung "Levelmatic". Zubehör: Mikrofon mit FB, Ohrhörer und Demo-Cassette. 3 Transistoren, 1 IC, 3 Dioden und 1 Thermistor. Frequenzbereich: 80-10000Hz.

• Net weight (2.2 lb = 1 kg)
• 1.7 kg / 3 lb 11.9 oz (3.744 lb)

• Price in first year of sale
• 178.00 DM

• Source of data
• -- Original prospect or advert

• Mentioned in
• - - Manufacturers Literature (Preisliste November 1972)

• Author
• Model page created by Franz Scharner. See "Data change" for further contributors.

• Other Models

• Here you find 1057 models, 947 with images and 242 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hitachi Ltd.; Tokyo