High frequency sliding inductance on wood base, 1900-1950
1900-1950
Wooden pillar insulators, 1900-1950
1900-1950
Stud field regulator, 1900-1950
1900-1950
Copper busbars and ebonite insulators, 1900-1950
1900-1950
Rotary convertor, 1900-1950
1900-1950
Part of Rugby transatlantic telephone transmitter, 1927-1956
1927-1956
Guard lamps on wooden board, 1900-950
1900-1950
Receiving ‘jigger’ used by the Marconi Company, 1899
1899
Aerial tuning inductance, 1900-1950
1900-1950
Iolanda transformer in wooden box, 1900-1950
1900-1950
Low frequency iron core inductance, 1900-1950
1900-1950
Tuning indicator with lamp, 1900-1950
1900-1950
High-frequency chokes, 1900-1950
1900-1950
Ferguson television receiver, 20", black-and-white, 1979
1979
Three-ring Enigma cypher machine in oak wood transit case
1934
Cavity Magnetron Valve
'MPB' call sign plaque, 1900-1950
1900-1950
'Cat's whisker' Crystal Radio
1920-1925
Billi condenser used for aerial tuning in Newfoundland, 1901
1901
Six-stage super heterodyne receiver processed on the ECME system, 1936-1955
1936-1955
Experimental form of Marconi Company magnetic detector, 1900-1910
1900-1910
Moulded unprocessed bakelite panel ready for ECME, 1936-1955
1936-1955
Pye 'Cambridge International' 11-band broadcast receiver, 1953
1953
Amplion loud speaker with wooden horn, 1925
1925
Straight horn loudspeaker, 1921-1926
1921-1926
Brownie crystal receiver and pair of Lissen headphones, 1924-1927
1924-1927
Hertzian receiving resonator, 1890-1894
1890-1894
Coherer, ebonite, with adjustable contacts, 1890-1896
1890-1896
Experimental transmitting ‘jigger’ used by the Marconi Company, 1899
1899
Radio tuning coil No. 100, 1922-1923
1922-1923
Radio tuning coil No. 150, 1922-1923
1922-1923
Aerial inductances, 1901
1901
Morse tape on which signals were recorded by means of a coherer, 1900
1900
Hertzian oscillator, 1890-1894
1890-1894
Radio tuning coil No. 200, 1922-1923
1922-1923
Radio tuning coil No. 300, 1922-1923
1922-1923
Spiral spring coherer, 1890-1894
1890-1894
Experimental model of Marconi's magnetic detector, 1900-1910
1900-1910
Liquid-filled Plastic Lens Television Magnifier, 1935-1965
1935-1965
Silicon crystal for wireless telegraphy, mounted in a locket, 1906-1916
1906-1916
Wartime civilian receiver A.C.mains type, 1944-1945
1944-1945
Telstar maser assembly with magnet, 1962-1967
1962-1967
Antiference 5-element Band III television aerial, 1945-1985
1955-1985
Cosmos crystal receiver, 1920-1930
1920-1930
Instruction booklet for Cosmos crystal receiver, 1920-1930
1920-1930
Volume 1 No. 1 of "Television" monthly magazine, 1928
1928
Filings coherer, Lodge pattern with two wires inserted into bulb at one end, 1894-1904
1894-1904
Syntonic Leyden jars, 1880-1889
1880-1889
Home made 30-line televisor, 1934
1934
'Radio at a glance' chart, 1925-1935
1925-1935