Hickok 539C - User Manual

Instructions for sending equipment for service, including contact details and procedures.

Introduction to the Model 539C Tube Tester, its purpose, and basic specifications.

Describes the line adjustment rheostat and its function with the AC voltmeter.

Explains the row of seven selector switches for setting tube base pin voltages.

Details the new short and leakage testing concept in the Model 539C.

Explains how to locate shorted elements using the neon lamp indicator.

Describes detecting heater-cathode leakage and its effects.

Details the noise test using the short test circuit and finger tapping.

Explains the leakage test capability up to 50 megohms on the Gm meter.

Describes the operating leakage test using switch positions A through E.

Details the procedure for testing tubes for gas content using push switches P5 and P6.

Explains the use of push switch P4 for dynamic transconductance tests.

Explains the use of push switches P1, P2, and P3 for testing different rectifier types.

Details the EIA numbering for sockets and their corresponding selector positions.

Explains the REVERSE-NORMAL switch for meter deflection.

Describes the use of GRID and PLATE jacks for top cap connections.

Details the special feature for performing a life test on tubes.

Explains how to test tubes under self-bias conditions.

Describes using posts to measure plate current with an external meter.

Provides steps to test filament and heater continuity using the tester.

Details the procedure for testing voltage regulator tubes.

Explains how to use the tube tester as a utility ohmmeter.

Describes the use of the LOW position for the PLATE VOLTS switch.

Details how to measure heater current using binding posts and an external meter.

Provides a table and instructions for testing ballast tubes.

Lists the parts for the Model 539C with Hickok Code No. and Ref. Symbol.

Instructions and settings for testing television picture tubes using the CRT-1 adapter.

Detailed instructions for performing the gas test with the CRT-1 adapter.

Procedure for testing and calibrating the Hickok Model 539C.

Steps for preparing the tester, including removing screws and zeroing meters.

Procedure for adjusting the AC line meter for accurate voltage readings.

Steps to set up switches for the shorts test.

Notes on checking shorts test switch contacts.

Procedure to set the sensitivity of the shorts lamp.

Procedure to connect a resistor for the leakage resistance meter test.

Procedure for testing filament voltages and checking voltage drop.

Procedure for testing normal and low plate voltages.

Procedure for testing normal and reduced screen voltages.

Procedure for testing bias voltage range and voltmeter accuracy.

Procedure for testing grid signal voltages across different function switch positions.

Procedure for testing the V.R. voltmeter and adjusting the control.

Procedure for testing the V.R. milliammeter.

Procedure for calibrating the power supply balance using an oscilloscope.

Procedure for balancing the meter bridge.

Procedure for performing mutual conductance reading tests with setup diagram.

Notes on checking resistors and adjusting the meter for readings.

Procedure for calibrating using a 6L6 calibration tube.

Procedures for testing diodes and rectifiers with specific settings.

Detailed steps for performing the gas test with a 6L6 tube.

General notes on Hickok calibration procedures and factors affecting accuracy.

Guidance on using the calibrated 6L6 tube for tester comparison and adjustment.

Guidelines and considerations for creating a calibration tube.