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
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
Wall telephone, 1880-1920
1880-1920
Pole climbing irons, 1900-1960
1900-1960
Pye PTC 2007 radio telephone, 1955-1964
1955-1964
Bell telephone, mahogany case, 1878
1878
Instruction booklet for Cosmos crystal receiver, 1920-1930
1920-1930
Loud speaker valve type L.S.5. W/T, 1923
1923
Table instrument with dial, 1903
1903
'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
National Telephone Company directory, 1898-1899
1898-1899
Mazradia E4M triode valve (McVitie Weston valve collection), 1910-1960
1910-1960
Part of Rugby transatlantic telephone transmitter, 1927-1956
1927-1956
Cossor OM6 pentode valve (McVitie Weston valve collection), 1925-1946
1925-1946
Submerged repeater for TAT-1, 1956
1956
Brownie crystal receiver and pair of Lissen headphones, 1924-1927
1924-1927
Replica of Bell's 1876 centennial telephone transmitter, 1959
1959
'Radio Times' volume 119 (Coronation Edition)
May 1953
Reporter mobile radiophone, 1951-1953
1951-1953
High-frequency chokes, 1900-1950
1900-1950
Lucas grapnel, 1888-1960
1888-1960
Filings coherer, glass tube with side pocket mounted on cylindrical rod with brass screw terminals at ends, 1894-1904
1894-1904
Coherer with coarse brass turnings, 1894
1894
Samaritans Sign, 1953-1960
1953-1960
Cable grappling illustration, 1874-1924
1874-1924
Marconi coherer and Admiralty pattern decoherer, 1900-1910
1900-1910
Filings coherer, glass tube containing powdered copper, bulb at one end, 1894-1904
1894-1904
High frequency sliding inductance on wood base, 1900-1950
1900-1950
Filings coherer, Lodge pattern with two wires inserted into bulb at one end, 1894-1904
1894-1904
Steljes ABC type printing telegraph receiver No. 477
1895-1910
Flag from Cable Ship 'Faraday' (sunk 1941), 1923-1941
1923-1941
Hand perforator and copy stand for Wheatstone automatic telegraph system, 1890-1910
1890-1910
Morse key with send-receive switch, 1900-1920
1900-1920
Filings coherer, Lodge pattern, 1895-1900
1895-1900
Low frequency iron core inductance, 1900-1950
1900-1950
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
Filings coherer, glass tube almost of taper shape, 1894-1904
1894-1904
Stroh's type-printer for Wheatstone ABC communicator, 1870-1881
1870-1881
Filings coherer, Lodge-Muirhead system, 1900-1910
1900-1910
Filings coherer, glass tube formed into T-shape at one end and bent round into U-shape at other end with bulb, 1899
1899
Copper busbars and ebonite insulators, 1900-1950
1900-1950
Coherer, ebonite, with adjustable contacts, 1890-1896
1890-1896
Coherer, narrow-bore glass tube, 1894-1904
1894-1904