Noise tube power supply
1960-1979
Rack Mounted Power supply Unit, Marconi MK III
Rack Mounted Power Supply Unit
1963-1990
Power supply unit
1970-1979
"Voltine" Extra high tension power supply 0-5kV. Made by Fisher Scientific UK
1997
"Voltline" Low voltage power supply
1997
Midas XL390 power supply unit for XL3 analogue audio mixing console
1990
Rack Mounted Focus Power Supply Unit, Marconi MK III
X-Y/t Plotter Model no.21005. Serial no.826 by Bryans
1970-1979
Regular power supply unit for Marconi Mk II television camera, c 1960
1950-1970
Regular power supply unit for Marconi Mk II television camera, c 1960
1950-1970
Regular power supply unit for Marconi Mk II television camera, c 1960
1950-1970