Hickok 539C The Hickok 539C portable tube teste

The Hickok 539C portable tube tester tests a wide variety of tube types, all to handbook specifications. Complete check of voltage regulator types. Features include six micromho ranges, four AC signal voltages, dual tube leakage readings (directly on meter or by neon short indicator), and also provides for plate current and heater current measurements. Portable tube tester, tests complete to handbook specifications Six micromho ranges Complete check of voltage regulator types Four AC signal voltages Dual tube leakage readings, directly on meter or by neon short indicator Provides for plate current and heater current measurement