• Country
• United States of America (USA)

• Manufacturer / Brand
• Brush Development Co. / Clevite Electronic Components; Cleveland, Ohio

• Year
• 1938 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 192544

• • alternative name: Brush Electronics

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - Is a Headphone or Earphone

• Material
• Various materials

• from Radiomuseum.org
• Model: Headset piezoelectric - Brush Development Co. /

• Dimensions (WHD)
• 170 x 150 x 60 mm / 6.7 x 5.9 x 2.4 inch

• Notes
• Piezo Crystal Headphone. Impedance 100 kOhm at 1000 Hz.

• Net weight (2.2 lb = 1 kg)
• 0.1 kg / 0 lb 3.5 oz (0.22 lb)

• Author
• Model page created by Emilio Focosi. See "Data change" for further contributors.

• Other Models

• Here you find 43 models, 39 with images and 22 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Brush Development Co. / Clevite Electronic Components; Cleveland, Ohio