Crystal Headphones A
Brush Development Co. / Clevite Electronic Components; Cleveland, Ohio
- Country
- United States of America (USA)
- Manufacturer / Brand
- Brush Development Co. / Clevite Electronic Components; Cleveland, Ohio
- Year
- 1939 ?
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 224216
-
- alternative name: Brush Electronics
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - Is a Headphone or Earphone
- Material
- Bakelite case
- from Radiomuseum.org
- Model: Crystal Headphones A - Brush Development Co. /
- Notes
-
Type "A". Response: 60 Hz to10000 Hz. Impedance over 50 kOhm at 400 Hz. At no time D.C. voltage should be applied! Single phone with band and cord or with lorgnette handle available.
- Net weight (2.2 lb = 1 kg)
- 0 lb 6 oz (0.375 lb) / 0.170 kg
- Price in first year of sale
- 5.00 USD
- Mentioned in
- Radio Shack Catalog (1939, page 13)
- Author
- Model page created by a member from D. 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
Collections
The model Crystal Headphones is part of the collections of the following members.