Model apparatus for transmitting pictures by telegraph, 1881
1881
Selenium cells and model apparatus for transmitting pictures by telegraph, 1881
- Made:
- 1881 in United Kingdom
Selenium cells and model apparatus for transmitting pictures by telegraph (phototelegraphy). Designed and constructed by Dr Shelford Bidwell in 1881. Mounted on board. (Seven parts, 1908-141/1 to 1908-141/7).
Example of photosensitive (selenium) material c 1890
1880-1900
Glass image of a butterfly c 1890
1880-1900
Scanned print of image of butterfly on sensitised paper, c 1890
1880-1900
Glass image of a horse, c 1890
1881
Scanned print of image of horse on sensitised paper, c 1890
1880-1900
Wooden stand used to support images for transmission, c 1890
1880-1900
Mica Strip With Notched Edges Ready for Winding
1880-1900
Mica Strip Wound With Wire
1880-1900
Wound Mica Coated With a Film of Selenium
1880-1900
Model Apparatus for Transmitting Pictures by Telegraph (Phototelegraphy)
1881
Example of photosensitive (selenium) material c 1890
1880-1900
Example of photosensitive (selenium) material c 1890
1880-1900
Example of photosensitive (selenium) material c 1890
1880-1900
Cylindrical wooden block with groove in its.
1880-1900
Details
- Category:
- Telecommunications
- Object Number:
- 1908-141
- type:
- demonstration model
- credit:
- Bidwell, Shelford
