Speaker Filter FMC Speaker Filter
Ford Radio & Mica Corp.; New York City, New York
- Country
- United States of America (USA)
- Manufacturer / Brand
- Ford Radio & Mica Corp.; New York City, New York
- Year
- 1927 ?
- Category
- Miscellaneous (Other, Various) - see notes
- Radiomuseum.org ID
- 264867
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - - No sound reproduction output.
- Material
- Metal case
- from Radiomuseum.org
- Model: Speaker Filter [FMC Speaker Filter] - Ford Radio & Mica Corp.; New
- Shape
- Chassis only or for «building in»
- Dimensions (WHD)
- 3.5 x 2.75 x 2.75 inch / 89 x 70 x 70 mm
- Notes
-
Input: 1800 ohms
Output: 2000 ohms
"It is designed to be used as a filter to keep the high current required in the plate circuit of power tubes out of the windings of the loud speaker. It not only protects the loud speaker from excessive high current flow, but improves the quality of reproduction because the constant D.C. strain is entirely eliminated from the speaker windings."
Quote from Radio Engineering, September 1927, Page 944
- Mentioned in
- Radio Engineering (September 1927, Page 944)
- Author
- Model page created by Terry Rohler. See "Data change" for further contributors.
- Other Models
-
Here you find 4 models, 4 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Ford Radio & Mica Corp.; New York City, New York
Collections
The model Speaker Filter is part of the collections of the following members.