Catalogue
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Marconi Aerial Tuning Inductance Coil, by Marconi Company, England, 1910
Inventory Number: 69155
Date: 1910
Maker Details: Attributed to Marconi's Wireless Telegraph Co. Ltd.
Inscription: None
Size: 210 mm (in diameter) x 270mm (in height)
Materials: Copper, nickel, teak?, brass.
Other Given Number(s): Christie's 44, Science Museum London 1960-260.
Notes:
Marconi Aerial Tuning Inductance Coil, for use with Marconi Crystal Receiver Type 31C. Cylindrical shape consists of a winding of insulated copper wire fitted with brass adjustable slide contact. One end of winding and slide contact are connected to pair of nickel-plated terminals mounted on teak? top of receiver. Winding constitutes an adjustable aerial tuning inductance that forms part of aerial circuit of the receiving system. Previously catalogued and associated with Marconi Crystal Receiver Type 31C (Inv. Num. 21573).
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