12 Volt Fleming Valve, by Royal Ediswan, London, c. 1905 | |||||||||||
 | |||||||||||
| Inventory Number: | 77499 | ||||||||||
| Object Type: | Object | ||||||||||
| Place Created: | London United Kingdom (England) Europe |
||||||||||
| Subject Classification(s): | Radio communication Radio communication Radio communication Radio communication | ||||||||||
| Accession Number: | 2004-9/182 | ||||||||||
| Primary Inscriptions: | "ROYAL EDISWAN" stamped on one side of exterior surface of bulb. "FLEMING OSCILLATION VALVE / 12 VOLTS." stamped other side of exterior surface of bulb. | ||||||||||
| Provenance: | Presented by the Marconi Corporation. | ||||||||||
| Collection Group: | Marconi Collection | ||||||||||
| Material(s): |
Glass brass? assorted metals. | ||||||||||
| Dimensions: |
|
||||||||||
Narratives | |||||||||||
Permalink: http://www.mhs.ox.ac.uk/object/inv/77499