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Electromagnetic detector for wireless telegraphy, No. 62,798, made by Marconi's Wireless Telegraph Co. Ltd, Chelmsford, Essex, c. 1902 - 1918
Combination of Branly’s coherer and Sir Oliver Lodge’s decoherer, fitted to a circular wooden base, made by Alex Steuart for wireless reception, Edinburgh, Scotland, c. 1892
Branly coherer, an electro-magnetic wave detector comprising a glass tube of iron filings with electrode caps fixed by ebonite stands to a brown varnished rectangular wooden base, used by Sir Oliver Lodge, maker unknown, England, 1894
Loudspeaker in black ebonite, on three feet, made in England by the Western Electric Co. Ltd
Marconi Wireless Telegraph Co. Ltd ME type seven valve amplifier, No. 179885, mounted in a wooden case with ebonite panel carrying six N.R.7.X valves and one Q type detector valve
Crystal wireless receiver, type C form A made by the British Thomson-Houston Co. of Coventry, with variometer tuning, two switchable crystal detectors, a condenser, and in a polished wood box
H2S Indicator Unit, Design 1, AP 5423, serial number CL106, for radar navigation and blind bombing, developed for the RAF in 1942
Electric glow lamp, in metal case with reflector, on ebonite base with small switch,
Portable field telegraph station with Morse key, inker, bell, ink bottle and paper tape all housed in oak case, by Ericsson and Co., Stockholm, c. 1880
Practice chanter with an ivory sole and ivory ring on the tenon, the top is mounted with a nickel ferrule and the mouthpiece is strengthened with two bands of ivory and ebonite, manufactured by W. MacDonald, Edinburgh, mid 19th century