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Record Details

'Marconi' Direction Finder Type DFM2, by Marconi Company, London, c. 1927

Inventory Number: 29821
Object Type:
Place Created: London England United Kingdom Europe
Accession Number: 2004-9/599
Brief Description: 'Marconi' Direction Finder Type DFM2, in grey-enamelled brass and teak case with hinged lid upon upper surface (revealing interior). Interior includes brass tuning condenser, assorted glass valves, coils and other circuitry. With assorted, primarily bakelite controls upon front vertical metal surface. Controls include filaments dial (scale 1-8), mode dial (standby, direction finder, sense), on/off dial, s.c tuning condenser dial (scale 0-10), glass-faced radiogoniometer (scale 0-360), tuning condenser dial (scale 450-1200 metres), coupling dial (scale 0-90), second tuning condenser dial (scale 600-1200 metres), third tuning condenser dial (scale 450-1200 metres), tuning adjustment dial (scale -5,0,5), note magnifier on/off switch. Controls are marked with celluloid nameplaques. With two S625 screened grid valves.
Primary Inscriptions: "'MARCONI' / DIRECTION FINDER / TYPE D.F.M.2 P.S. No. 2592 A / INST.No.362863 MARCONI'S WIRELESS TELEGRAPH CO LTD LONDON" printed on metal plaque upon exterior surface of front metal panel.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Teak
brass
ebonite
glass
bakelite
celluloid
steel.
Dimensions:
Height Width Depth Diameter Unit
870 375 210 mm

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Image with multimedia irn 35510Image with multimedia irn 35511Image with multimedia irn 35512

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