Megger MIT1525 15kV Digital Insulation Resistance Tester w/ Leads Case + Docs

Vintage 30/50s Megger Series 3 Hand-Cranked Insulation Tester ~Evershed&Vignoles

Biddle Megger 212159 Insulation Tester

Douglas Aircraft Aviation Biddle Megger • Hand Crank Insulation Tester • Vintage

Biddle Battery Megger Megohms Ohms Volts Meter Tester W/ Case - Vintage

Evershed & Vignoles Megger 500v Insulation Tester + Original Case - 1900's

Biddle Instruments 210600 Digital Megger Tester Working not tested

RARE VINTAGE MEGGER INSULATION TESTER JAMES G BIDDLE CO. DC GENERATOR *UNTESTED*