Submerged repeater for TAT-1, 1956
1956
Two-wire telephone repeater, 1923-1925
1923-1925
Submerged repeater amplifier, 1967
1967
Transistorized audio-frequency telephone line amplifier, 1953
1953
Transistorized audio-frequency telephone line amplifier, 1954
1954
Heurtley magnifier, 1919
1919
Transistorized audio-frequency telephone amplifier, 1955
1955
Marshall JVM410H-H 100W guitar amplifier head
2017
Marshall JVM410H-H 100W guitar amplifier head and associated accessories
2017
Amplifier for Oramics Machine
1966
Trio Solid State Stereo Amplifier Model KA-2002
Amplifier and Processing Equipment for Noise Monitoring Unit
1955-1964
Klangfilm Amplifier for Zeiss-Ikon Type B Portable 35mm Sound Projector
1930
BBC OBA/9 Outside Broadcast Amplifier
1952
Amplifier for Lightworks Non-Linear Editing Machine
1990s
Amplifier for Lightworks Non-Linear Editing Machine
1990s
German two-valve low-frequency amplifier from the First World War, 1914-1918
1914-1918
Valve amplifier, by Shirley Laboratories Ltd, 1954-1960
1954-1960
BBC amplifier type IB/103 used for outside broadcast with new ribbon microphone. In case
1935
Home-constructed Williamson amplifier, c. 1949
circa 1949
Probably a battery powered amplifier
Amplifier and sound recorder
BBC AM7/3 Internal Send amplifier modules
1972
BBC GPA/1A General Purpose Amplifier
BBC 2CT/2 Loudspeaker Amplifier
BBC C/3 Amplifier
BBC D/2 Amplifier
1931
BBC OBA/8 Outside Broadcast Amplifier
1938
BBC AM8/6 Loudspeaker Amplifier
1963
BBC D/11 General Purpose Amplifier
circa 1943
BBC C/8 Amplifier
circa 1963
Outside Broadcast Audio Amplifier
1900-1930
BBC OBA/9 Trap Valve Amplifier
1952
Outside Broadcast Audio Amplifier
1936
BBC OBA/9 Outside Broadcast Amplifier
1952
BBC OBA/8 Microphone Amplifier & Programme meter
1938
Marconi BD517C microphone and general purpose amplifier module
1961
Microphone Amplifier type OBA/8, 1939
circa 1939
Leak "point one" sound pre-amplifier, 1956
1956
Gaumont Kalee GK18 Amplifer
Gaumont Kalee GK18 Amplifer
Tannoy Voltage Amplifier Type SPC/TVA
Tannoy Amplifier Type AP.60/3.IP. M.K.II
Tannoy AP.30/2.IP Mk. 1 amplifier
Third manufacturing stage of Amplifier for Lyman-alpha detector
BBC TSA/2 Tone Source Amplifier
circa 1931
Home-built amplifier
1965; 1965
Prototype Cox selenium-cell magnifier equipment, 1910-1920
1910-1920
two-wire telephone repeater, 1923-1925
1923-1925
Model 13 Amplifier for infrared spectrophotometer, Perkin-Elmer model 12c, United States, 1944-1950
1944-1950