• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1990 ?

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 303644

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

• Number of Transistors
• Semiconductors present.

• Semiconductors
• LA5521 NJM2702 NJM2703

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Special Tape or Cassette-Format

• Power type and voltage
• Batteries / addl. power jack / AA: 2 x 1.5 / DC 3 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 cm = 1.6 inch

• Power out
• 0.15 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Microcassette-Corder M-550V - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 67.5 x 124 x 27 mm / 2.7 x 4.9 x 1.1 inch

• Notes

• Mircocassette-Recorder with 2-track, 1-channel monaural recording system.

  Tape speeds: 2.4 and 1.2 cm/sec
  Frequency response: 250 - 4000 Hz (at 2.4 cm/s)
  Incorporated condenser microphone
  Jack for DC input, earphone and external microphone

  Tape transport mechanism type MZ-550V-14. Model M-550V shares the manual with models M-440V and M-660V. Similar to the Sony M-440V Microcassette-Corder.

• Net weight (2.2 lb = 1 kg)
• 0.150 kg / 0 lb 5.3 oz (0.33 lb)

• Mentioned in
• - - Manufacturers Literature (M-440V/550V/660V Service Manual dated 1991)

• Author
• Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

• Other Models

• Here you find 3913 models, 3773 with images and 947 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo