Dynamic Speaker Unit
Operadio Corp.; St. Charles (IL)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Operadio Corp.; St. Charles (IL)
- Year
- 1928/1929
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 228443
-
- alternative name: Operadio Mfg,
- Wave bands
- - without
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Metal case
- from Radiomuseum.org
- Model: Dynamic Speaker Unit - Operadio Corp.; St. Charles IL
- Shape
- Chassis only or for «building in»
- Notes
-
Incorporates decisive improvements in power reproduction. Manufactures under special Operadio designs to handle the output of the largest sets built regardless of the stages of power amplification used, without trace of distortion, blasting or rattling. 6 Volt D. C. $35; 110 Volt D. C. $40; 110 Volt A. C. $50
- Source of data
- Radio Retailing (Radio & Television R.)
- Author
- Model page created by Heiko zur Mühlen. See "Data change" for further contributors.
- Other Models
-
Here you find 66 models, 43 with images and 32 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Operadio Corp.; St. Charles (IL)