Evershed portable testing set
Avodaptor for use with Avo meter to test radio equipment
potentiometer no.114 - 1890
potentiometer no.1012 - 1920
G.P.O. moving coil milliameter and voltmeter
Siemens and Halske test set no.46371
Electrostatic voltmeter, disassembled to show parts
Evershed and Vignoles bridge 'Megger' testing set
