7th Nov, 2017 12:00
Maritime and Scientific Models, Instruments & Art ('Fearless')
250
[M] AN EARLY 20TH CENTURY VARIABLE RADIO COIL BY...
AN EARLY 20TH CENTURY VARIABLE RADIO COIL BY MUIRHEAD & CO. LTD, WESTMINSTER
constructed in wood and Bakelite, the top with rotary stud switch, for 1-20 megahertz or millihenries, signed on the top as per title, with company label attached -- 11in. (28cm.) high; together with an artificial aurora, unsigned, with 22in. electrostatic glass vacuum tube with brass mounts and contacts, thread mounted to substantial brass bedplate with air inlets and tap, on cast iron foot -- 30in. (76cm.) high (overall); together with a Megger insulation and continuity tester, series 2 by Evershed & Vignols Ltd, London, mounted on a wooden base with maker's label and Perspex and metal cover and a high voltage generator demonstrator by Cox-Cavendish Electrical Co., London, circa 1920
(4)
constructed in wood and Bakelite, the top with rotary stud switch, for 1-20 megahertz or millihenries, signed on the top as per title, with company label attached -- 11in. (28cm.) high; together with an artificial aurora, unsigned, with 22in. electrostatic glass vacuum tube with brass mounts and contacts, thread mounted to substantial brass bedplate with air inlets and tap, on cast iron foot -- 30in. (76cm.) high (overall); together with a Megger insulation and continuity tester, series 2 by Evershed & Vignols Ltd, London, mounted on a wooden base with maker's label and Perspex and metal cover and a high voltage generator demonstrator by Cox-Cavendish Electrical Co., London, circa 1920
(4)
Sold for £81
Estimated at £100 - £150
(inc. buyer's premium of 24%)
AN EARLY 20TH CENTURY VARIABLE RADIO COIL BY MUIRHEAD & CO. LTD, WESTMINSTER
constructed in wood and Bakelite, the top with rotary stud switch, for 1-20 megahertz or millihenries, signed on the top as per title, with company label attached -- 11in. (28cm.) high; together with an artificial aurora, unsigned, with 22in. electrostatic glass vacuum tube with brass mounts and contacts, thread mounted to substantial brass bedplate with air inlets and tap, on cast iron foot -- 30in. (76cm.) high (overall); together with a Megger insulation and continuity tester, series 2 by Evershed & Vignols Ltd, London, mounted on a wooden base with maker's label and Perspex and metal cover and a high voltage generator demonstrator by Cox-Cavendish Electrical Co., London, circa 1920
(4)
constructed in wood and Bakelite, the top with rotary stud switch, for 1-20 megahertz or millihenries, signed on the top as per title, with company label attached -- 11in. (28cm.) high; together with an artificial aurora, unsigned, with 22in. electrostatic glass vacuum tube with brass mounts and contacts, thread mounted to substantial brass bedplate with air inlets and tap, on cast iron foot -- 30in. (76cm.) high (overall); together with a Megger insulation and continuity tester, series 2 by Evershed & Vignols Ltd, London, mounted on a wooden base with maker's label and Perspex and metal cover and a high voltage generator demonstrator by Cox-Cavendish Electrical Co., London, circa 1920
(4)
Auction: Maritime and Scientific Models, Instruments & Art ('Fearless'), 7th Nov, 2017
