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Portable Valve Transmitter, by Marconi Company, London, 1919

preview image for Portable Valve Transmitter, by Marconi Company, London, 1919
Inventory Number: 61008
Object Type:
Place Created: London United Kingdom (England) Europe
Accession Number: 2004-9/83
Brief Description: Portable Valve Transmitter, with single valve compartment, bakelite? aerial inductance (scale 0-180) and reaction coil (scale -90-+90) knobs, filament (scale OFF-3) and sliding resistance (out<-resistance->in) controls, Weston Ammeter (scale 0-10, 0-0.10), and 'Press 10 Amps' button. With earth and aerial nickel-plated terminals, hinged lid and two brass plaques on top surface; hinged lid on side. In teak case with removable front cover, circuit diagram pasted on interior of lid. Previously catalogued with Small Morse Key (Inv. Num. 71452).
Primary Inscriptions: "MARCONI'S WIRELESS / TELEGRAPH CO. LTD. / NO 133049 LONDON" printed on brass plaque upon upper exterior surface.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Brass
nickel
teak
bakelite?
paper.
Ebonite?
Dimensions:
Height Width Depth Diameter Unit
195 280 275 mm

There are no associated narratives.

Image with multimedia irn 39555Image with multimedia irn 39556Image with multimedia irn 39557Image with multimedia irn 39558Image with multimedia irn 39559

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