• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1992

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 133162

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• - without

• Power type and voltage
• Dry Batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Compact Lavalier Microphon ECM-144 - Sony Corporation; Tokyo

• Notes
• Compact Electret Lavalier Microphon, ECM-144, 50-15000 Hz, 69 dB/ 1 kOhm.

• Source of data
• -- Original prospect or advert

• Author
• Model page created by Sándor Selyem-Tóth. 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