Apparatus for determining circuit transfer characteristics employing three phase displaced signals and three phase sensitive rectifiers applied to crt deflectors
GB1163161A
Digital Computer Arithmetic Unit.
GB1131527A
Apparatus for measuring transfer characteristics of an electrical system
GB1039743A
Improvements in or relating to low frequency electric waveform generating circuit arrangements
GB1039603A
Improvements in or relating to phase shifting devices
GB1032811A
Improvements in or relating to amplifying circuit arrangements
