Wound Mica Coated With a Film of Selenium

Made:
1880-1900 in United Kingdom

'Wound Mica Coated With a Film of Selenium'. One of four examples of photosensitive (selenium) material in various stages of construction. Fixed to wooden mount. Part of apparatus for transmitting pictures by telegraph (phototelegraphy). Designed and constructed by Dr Shelford Bidwell in 1881.

Details

Category:
Telecommunications
Object Number:
1908-141 Pt10
Materials:
copper (metal), mica, selenium
Measurements:
selenium cell: 21 mm x 67 mm .05kg
status:
Loan

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