General Electric Voltmeter type P3

Serial No.2048430

GE Voltmeter 600 Volt AC electrodynamic voltmeter housed in wooden box with hinged lid. General Electric Ltd, West Lynn Works, Shenectady,New York, USA, date February 1945

This is one of many instruments collected by Jack Davidson C Eng FIEE which I have been given by Dr Graham Winbolt

Interior of lid showing calibration details