Straight horn loudspeaker, 1921-1926
1921-1926
Home-made equipment for 30-line television reception, 1929-1935
1929-1935
Volume 1 No. 1 of "Television" monthly magazine, 1928
1928
Six-stage super heterodyne receiver processed on the ECME system, 1936-1955
1936-1955
Five-line single cord switchboard, 1900-1909
1900-1909
Amplion loud speaker with wooden horn, 1925
1925
Mazda QP.240 battery double output pentode valve (McVitie Weston valve collection), 1935
1935
'Radio at a glance' chart, 1925-1935
1925-1935
De Forest audion 1906-1915
1906-1915
De Forest Audion soft detector triode (McVitie Weston valve collection), 1906-1972
1906-1972
S.215 dummy valve, 1920-1929
1920-1929
Cosmos crystal receiver, 1920-1930
1920-1930
Wartime civilian receiver A.C.mains type, 1944-1945
1944-1945
Fotos triode valve with two top caps (McVitie Weston valve collection), 1916-1972
1916-1972
706L telephone, 1959-1967
1959-1967
Sub unit from LEO II computer, 1958
1958
Pole climbing irons, 1900-1960
1900-1960
Replica of the satellite Telstar 1 from 1962, 1982
(1962); 1982
Demonstration radio receiver
1926
Pye PTC 2007 radio telephone, 1955-1964
1955-1964
Instruction booklet for Cosmos crystal receiver, 1920-1930
1920-1930
Pentex production unit: B switch, 1965-1971
1965-1971
Telephone crossbar switch RVD 211, 1970
1970
Loud speaker valve type L.S.5. W/T, 1923
1923
Table instrument with dial, 1903
1903
Silicon crystal for wireless telegraphy, mounted in a locket, 1906-1916
1906-1916
'Channel' Band III television converter, type C2, 1955-1960
1955-1960
Home made 30-line televisor, 1934
1934
Specimen of television cable, 1936
1936
Ekco AD75 radio receiver, 1946
1946
Part of Rugby transatlantic telephone transmitter, 1927-1956
1927-1956
Mazradia E4M triode valve (McVitie Weston valve collection), 1910-1960
1910-1960
Cossor OM6 pentode valve (McVitie Weston valve collection), 1925-1946
1925-1946
Telsa T65H telephone, 1950-1967
1950-1967
Submerged repeater for TAT-1, 1956
1956
Submerged repeater amplifier, 1967
1967
Brownie crystal receiver and pair of Lissen headphones, 1924-1927
1924-1927
Post Office 746 telephone, 1967-1971
1967-1971
Reporter mobile radiophone, 1951-1953
1951-1953
'Radio Times' volume 119 (Coronation Edition)
May 1953
Strowger calling dial, 1906
1906
High-frequency chokes, 1900-1950
1900-1950
Samaritans Sign, 1953-1960
1953-1960
Sample of four-core telegraph cable connecting Vancouver Island with the mainland
1904
Marconi coherer and Admiralty pattern decoherer, 1900-1910
1900-1910
Aerial inductances, 1901
1901
Polythene insulated copper conductor cable, 1939-1969
1939-1969
High frequency sliding inductance on wood base, 1900-1950
1900-1950
Blotter with Western Telegraph Company markings, 1900-1960
1900-1960
Experimental form of Marconi Company magnetic detector, 1900-1910
1900-1910