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Emergency Quenched-Gap Transmitter Type 335, by Marconi Company, English, c. 1920

Inventory Number 20374

Acknowledgement: © History of Science Museum, University of Oxford, inv.20374

Item type
Object
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
"MARCONI CONDENSER TYPE 51 / P.S. No 767 N INST No 334773 / CAP .012 MFD VOLTS 6000 D.C." printed on exterior surface of condenser. "AMPERES / No371475 MARCONI PAT. APP. FOR" printed on interior face of ammeter.
Object type
Radio communication
Dimensions
Height: 292mm Width: 240mm Depth: 285mm Weight: 6.25kg
Inventory No
20374
Accession Number
2004-9/571

Description

Emergency Quenched-Gap Transmitter Type 335, with tuned circuit on ebonite and teak frame. With iron three disc discharger, copper coil, vertically-mounted condenser with ebonite surface, Marconi ammeter (scale 0-4amperes) and nickel-plated terminals. Missing cover with maker's plaque.

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