- Item type
- Object
- Provenance
- Presented by the Marconi Corporation.
- Primary inscriptions
- "MARCONI OSRAM VALVE / MADE AT THE OSRAM LAMP WORKS/ COVERED BY VARIOUS PATENTS / MADE IN ENGLAND / M" printed on exterior surface of bulb. "_.T.1 / 1" printed on exterior surface of bulb.
- Object type
- Radio valve
- Inventory No
- 46376
- Accession Number
- 2004-9/504
Description
Marconi Transmitting-Type Radio Valve (or Tube) Type MT1, with large glass bulb, nickel-plated interior filaments and anodes, and lacking base. With three jewellry-like electrodes protruding from the lower section of the bulb and a single jewellry-like electrode protruding from the upper section of the bulb.
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