- Country
- Great Britain (UK)
- Manufacturer / Brand
- Marconi Co. (Marconiphone, Marconi's Wireless Telegraph Co. Ltd.), GB (not tubes - see also HMV His Master's Voice)
- Year
- 1895–1906
- Category
- Radio part (not a module)
- Radiomuseum.org ID
- 227335
- Number of Tubes
- 0
- Valves / Tubes
- Coherer
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - - No sound reproduction output.
- Material
- Various materials
- from Radiomuseum.org
- Model: Coherer Detector - Marconi Co. Marconiphone,
- Shape
- Miscellaneous shapes - described under notes.
- Notes
-
The Coherer was the first active device that was used by the Marconi Wireless Telegraph Company to detect radio frequency signal from spark transmitters. It consists a glass tube fitted with two silver plugs forming angled electrodes with a narrow gap between them filled with metal filings. The Marconi Coherer used a very small quantity of nickel filings to which was added a small percentage of silver. The glass tube was mounted to an ivory rod so the striker had a place to hit when decohereing the coherer.
- Author
- Model page created by Alan Larsen. See "Data change" for further contributors.
- Other Models
-
Here you find 501 models, 334 with images and 317 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Marconi Co. (Marconiphone, Marconi's Wireless Telegraph Co. Ltd.), GB (not tubes - see also HMV His Master's Voice)
Collections
The model Coherer Detector is part of the collections of the following members.
Museums
The model Coherer Detector can be seen in the following museums.