Filings coherer, glass tube bent into U-shape at one end, 1894-1904

Filings coherer, glass tube bent into U-shape at one end, 1894-1904

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Filings coherer, glass tube bent into U-shape at one end, designed or used by Sir Oliver Lodge, England, 1894-1904

Details

Category:
Radio Communication
Object Number:
1942-40/8
Materials:
metal (unknown) and glass
Measurements:
overall: 10 mm x 45 mm x 20 mm,
type:
coherer
credit:
Donated by E. E. and T. H. Robinson