Submerged repeater for TAT-1, 1956
1956
Submerged repeater amplifier, 1967
1967
Transistorized audio-frequency telephone line amplifier, 1954
1954
Marshall JVM410H-H 100W guitar amplifier head
2017
Transistorized audio-frequency telephone line amplifier, 1953
1953
Transistorized audio-frequency telephone amplifier, 1955
1955
Leak "point one" sound pre-amplifier, 1956
1956
Pye 4060 Compression Amplifier
circa 1965
Home-constructed Williamson amplifier, c. 1949
circa 1949
Vortexion (Blattnerphone) Record Amplifier
two-wire telephone repeater, 1923-1925
1923-1925
Marshall JVM410H-H 100W guitar amplifier head and associated accessories
2017
Valve amplifier, by Shirley Laboratories Ltd, 1954-1960
1954-1960
Heurtley magnifier, 1919.
1919
Amplifier for Oramics Machine
1966
Marconi BD517C microphone and general purpose amplifier module
1961
Home-built amplifier
1965; 1965
Outside Broadcast Audio Amplifier
1900-1930
Prototype Cox selenium-cell magnifier equipment, 1910-1920
1910-1920
Amplifier made by Trio, 1971
1970-1971
Gaumont Kalee GK18 Amplifer
TOA 500 Series Mixer Power Amplifier A-503E
Amplifier and sound recorder
Outside Broadcast Audio Amplifier
1936
Gaumont Kalee GK18 Amplifer
Trio Solid State Stereo Amplifier Model KA-2002
Third manufacturing stage of Amplifier for Lyman-alpha detector
Three-stage amplifier and equaliser
1931-1940
Gaumont Kalee GK18 Amplifer
Probably a battery powered amplifier
Internal electrode structure from Adler tube low-noise amplifier
1960
Leevers-Rich Amplifier and a Beat Frequency Oscillator
BT Amplifier 109G
unknown
Outside Broadcast Audio Amplifier
1936
Tannoy AP.30/2.IP Mk. 1 amplifier
Ash Nicam tuner amplifier, c 1995
1985-2005
Multi-wavelength gain block erbium doped fibre amplifier, 1999
1999
All-Ceramic Tetrode Amplifier
1953-1954
BBC GPA/1A General Purpose Amplifier
BT Amplifier 109G
unkonwn
BBC OBA/9 Outside Broadcast Amplifier
1952
Experimental, high-power, demountable Adler tube amplifier (tube only)
1960
BBC OBA/9 Outside Broadcast Amplifier
1952
Leak model TL/10 sound power amplifier, 1956
1956
Tannoy Amplifier Type AP.60/3.IP. M.K.II
BBC C/3 Amplifier
BBC AM8/6 Loudspeaker Amplifier
1963
BBC ERU/1 Equaliser and Repeater Unit. Transportable (mains only) line equaliser and repeater amplifier unit
BBC TSA/2 Tone Source Amplifier
circa 1931
BBC amplifier type IB/103 used for outside broadcast with new ribbon microphone. In case
1935