• Country
• United States of America (USA)

• Manufacturer / Brand
• Electro-Voice Inc.; USA

• Year
• 1930 ??

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 306435

• • Brand: Buchanan

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Material
• Metal case

• from Radiomuseum.org
• Model: Double Button Carbon Microphone - Electro-Voice Inc.; USA

• Author
• Model page created by Pavek Museum. See "Data change" for further contributors.

• Other Models

• Here you find 124 models, 115 with images and 45 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Electro-Voice Inc.; USA