Specimen of the first transatlantic telephone cable, deep sea type, 1956
1956
Experimental carbon block microphone, 1878-1890
1878-1890
Replica of Bell's 1876 centennial telephone transmitter, 1959
1959
‘Medico-Electrical Machine’ by Nairne and Blunt
1782-1793
Powdered graphite microphone, 1878-1890
1878-1890
Receiving ‘jigger’ used by the Marconi Company, 1899
1899
Experimental carbon pencil microphone, 1878-1890
1878-1890
Experimental microphone, 1878-1890
1878-1890
Experimental microphones with carbon pencils and cups, 1878-1890
1878-1890
Wing Model used during the Investigation of the Concorde Wing Shape
circa 1960
Granular microphone in glass tube, 1878-1890
1878-1890
Cylindrical glass bottle of quinine sulphate
1860-1910
Poured wax doll
circa 1900
Wax model of a female human head, Germany, 1801-1900
1801-1900
Cylindrical glass bottle containing cinchonidine
Wing model used during the investigation of the Concorde wing shape
circa 1960
Wing model used during the investigation of the Concorde wing shape
circa 1960
Hertzian receiving resonator, 1890-1894
1890-1894
Aerial inductances, 1901
1901
Plaque showing the development of a human embryo
1801-1830
Wax plaque showing foetus in the womb
1801-1830
Wax plaque showing a dissected female figure
1801-1830
Wax plaque showing a dissected female figure
1801-1830
Mirror galvanometer for the transatlantic telegraph, 1858
1858
De Forest syntoniser, 1902-1907
1902-1907
Filings coherer, small glass tube with bulb at one end and cap of red sealing wax at other end, 1898
1898
Filings coherer, glass tube bent into U-shape at one end with bulb to form side-pocket on mounting bracket with terminals, 1894-1904
1894-1904
Powdered graphite microphone, 1878-1890
1878-1890
Powdered graphite microphone, 1878-1890
1878-1890
Experimental microphone using steel needles and gas carbon, 1878-1890
1878-1890
Granular microphone in bamboo tube, 1878-1890
1878-1890
Wing Model used during the Investigation of the Concorde Wing Shape
circa 1960
Waxed post-mortem thread
circa 2016
Cell used in interruptor circuit, 1875-1890
1875-1890
Wax plaque showing a dissected female figure
1801-1830
Plaque showing the development of a human embryo
1801-1830
Wax plaque showing a dissected female figure
1801-1830
Wax plaque of woman showing foetus in the womb
1801-1830
Plaque showing the development of a human embryo
1801-1830
Receiving ‘jigger’ used by the Marconi Company, 1898
1898
Clockwork interruptor, once owned by David Hughes, 1875-1880
1875-1880
Amuletic loadstone with scalloped metal mounts
1551-1700
Alarm clock
1840-1900
Filings coherer, glass tube capped at ends, 1894-1904
1894-1904
Experimental wood-charcoal microphones, 1878-1890
1878-1890
Wax anatomical plaque showing a foetus, Europe, 1801-1830
1801-1830
Wax plaque in glazed wooden frame
1701-1730
Haemoglobinometer
1850-1950
'Safe in the Arms of Jesus' phonograph cylinder