'Cat's whisker' Crystal Radio
1920-1925
Radio with Bakelite case
1940
Moulded unprocessed bakelite panel ready for ECME, 1936-1955
1936-1955
Pye B16T television receiver
1946-1948
Six-stage super heterodyne receiver processed on the ECME system, 1936-1955
1936-1955
Wartime civilian receiver A.C.mains type, 1944-1945
1944-1945
Home made 30-line televisor, 1934
1934
Ekco AD75 radio receiver, 1946
1946
Tuning indicator with lamp, 1900-1950
1900-1950
Morse key, 1850-1870.
1850-1870
Demonstration radio receiver
1926
Crossley table telephone, 1879
1879
Face phantom for practicing eye operations
1907-1930
Jones 50-line switchboard, 1879.
1879
Sargrove sprayed circuit radio receiver production prototype, 1936-1948
1936-1948
Two-valve radio receiver made on the ECME machine, 1947-1948
1947-1948
Moulded unprocessed Bakelite panel ready for ECME, 1936-1955
1936-1955
Passive component plate, type A3, for Sargrove sprayed-circuit radio receiver, 1936-1948
1936-1948
Moulded unprocessed Bakelite panel ready for ECME, 1936-1955
1936-1955
Flat steel-spring (or watch-spring) coherer, 1894
1894
Original wheel or steel-disc coherer, 1902
1902
Hollerith 45 column horizontal electrical sorting machine, 1920-1930
1920-1930
Phillip's Economic Computer
1949
Edison telephone peg switchboard and pegs, 1879
1879
Table telephone No. 2, 1906-1959
1906-1959
200 series dial telephone, 1925-1935
1925-1935
Bridge telephone, 1900-1950
1900-1950
Aircraft radio telephony transmitter, complete with round valve and microphone, 1915
1915
Pair of Trieder 'Porro' type prismatic opera glass binoculars (3 power & 12mm objective lenses)
1902-1924
Marconi - BBC. lip microphone with equaliser unit
Rectal syringe, bakelite, 1920-1950
1920-1950
BBC condenser microphone
circa 1934
Sponge forceps
1851-1900
Camera, Hexi
1955
Lunar globe
1961-1964
Drop-sided electric toaster
Train Ticket Box with Four Train Tickets for North Eastern Railway
Train staff and ticket, Saltburn West and Crag Hall
Obturator and stop for urethral speculum
1905-1925
Cystoscope, plated metal
1890-1930
Eve's halometer for diagnosis of pernicious anaemia
1910-1975
Gee Mark 2 cathode ray tube
cylinder vacuum cleaner
Small section of armour plated steel
Durst '243' Masking Frame
1960
Instrument sterilizer
1930-1950
"Lumy" Extinction Meter
1930-1940
Drem 'Cinemeter'
1933
VP Twin Pocket Camera in Original Box
1930
