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History of Science Museum

Portable Aircraft Spark Transmitter 40W, by Marconi Company, London, c. 1912

Inventory Number 19772


Acknowledgement: © History of Science Museum, University of Oxford, inv.19772

Item type
Object
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
"MARCONI'S WIRELESS / TELEGRAPH CO LTD / NO 19804 LONDON" on brass plaque at front of case. "TRASMETTITORE DA 40 W A SCINTILLA PER AEROMOBILE" on paper pasted to inside of lid.
Object type
Radio communication
Dimensions
Height: 195mm Width: 240mm Depth: 290mm Weight: 7.4kg
Inventory No
19772
Accession Number
2004-9/44

Description

Portable Aircraft Spark Transmitter 40W, in lidded teak case with leather strap on front exterior surface. Interior has horizontally-mounted trembler spark coil with USA-made brass and bakelite? Morse key, spark gap and coil on vertical ebonite panel. Battery? has "L 5. / No 953" etched on top exterior surface.