Multi-Amp MS-1A Overload Relay and Circuit Breaker Test Set NIST Calibrated

Megger Biddle DC Dielectric Test Set 120 KiloVolts- W/ DAMAGED BOX

Vintage Biddle Instruments DC CURRENT SUPPLY AS IS AS PICTURED 🔥🔥

Biddle 513100 AC/DC Digital Kilovoltmeter

Varian Porta-Test Leak Detector Leak Rate/Pressure Gauge Unit

(PARTS!) Biddle Instruments Appliance and Tool tester Cat No 235000 (UNTESTED)

Vtg Biddle 1948 21J Megger Insulation Tester Hand Crank Resistance Bridge Meg

BIDDLE INSTRUMENTS 670065 CAPACITANCE & DISSIPATION FACTOR TEST SET FOR PARTS!