Evershed and Vignoles Megger hand wound high voltage insulation tester. Electrician's must have instrument from 1940s

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Size: 4497px × 3373px
Photo credit: © David Porter Fine Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: evershed, high, instrument, insulation, measure, measurement, megger, megohms, ohm, ohmmeter, ohms, tester, vignoles, vintage, voltage