Princeton Applied Research PAR BZ-1 Mechanical Light Chopper 1960s Vintage

Chemical Research Supplies 8 mm red rubber/silicone septa #308715 (8-TST 1)

HYPOT tester 414 Associated Research insulation break down meter

Associated Research 4040AT AC HyPot and Ground Continuity Test Set 0-3000VAC Out

HP 8410A Network Analyzer Mainframe - Powers On, Meter Active - Parts or Repair

Altronic Research 5kW RF Dummy Load 5 kW Water Cooled 5000W Resistor 5705/SC/FE

Associated Research Cable Assembly Line / Test Lead 38835

Amplifier Research FP2080 Isotropic Field Probe (80MHz-40GHz)