Universal voltmeter type 261 Serial No.116 made by


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Universal voltmeter type 261 Serial No.116 made by Sapphire Research and Electronics Ltd, 1 to 1000 volts and 100 microamps to 100 milliamps in eight ranges, plus a.c/d.c. and X1/ X10 multiplier switches, with digital readout on cyclometer type dial behind cylindrical lens


Electricity and Magnetism
Object Number:
European Space Tribology Laboratory

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