- Item type
- Object
- Provenance
- Presented by the Marconi Corporation.
- Primary inscriptions
- "MARCONI OSRAM VALVE / MADE AT THE OSRAM LAMP WORKS / COVERED BY VARIOUS PATENTS / 48537 V.24" printed on the exterior surface of the bulb.
- Object type
- Radio valve
- Dimensions
- Diameter: 25mm Height: 75mm Weight: 0.05kg
- Inventory No
- 83077
- Accession Number
- 2004-9/328
Description
Marconi Radio Valve Type V24, in thin glass envelope with caps at either ends, with grid and anode connections as envelope side pips, and single strand tungsten filament running entire length with a spring for tensioning. Construction was co-axial with helical wire grid surrounding filament and fitting within cylindrical anode. In this valve, 'U' shaped glass support holds two stout wire rods that attach to anode and grid respectively; thus electrodes are only supported at one end. Previously catalogued with assorted other valves.
Related Items
More related items
Marconi Radio Valve Type V24, by Marconi Company, English, 1920sInventory Number 90635
Marconi Radio Valve Type LP2, by Marconi Company, English, 1930sInventory Number 88183
Marconi Radio Valve Type DEHL210, by Marconi Company, English, 20th CenturyInventory Number 46377
Marconi Radio Valve Type DEV, by Marconi Company, English, c. 1923Inventory Number 75263