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Record Details

Early Coherer, c. 1899

preview image for Early Coherer, c. 1899
Inventory Number: 88920
Object Type:
Accession Number: 2004-9/516
Brief Description: Early Coherer, relatively fragile, dated 1899. In small, narrow cylindrical glass tube with nickel-plated components, and copper connection wires exiting from each end. Structure appears to be two glass rods tied together side by side, with upper glass rod having protruding glass tip. Label would indicate that filings are made of nickel and silver.
Primary Inscriptions: "29/11/99 C / nic & sil / Busy 1 Hour" handwritten on attached folded paper label.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
copper
nickel
silver
assorted metals.
Dimensions:
Height Width Depth Diameter Unit
120 130 mm

Narratives

Image with multimedia irn 35252Image with multimedia irn 40019Image with multimedia irn 40020

Permalink: http://www.mhs.ox.ac.uk/object/inv/88920