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User Manuals, Instructions and Guides for Hickok products.

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HICKOK 800A Tube Tester Instruction Manual

February 27, 2026
HICKOK 800A Tube Tester LIST OF TEST EQUIPMENT REQUIRED D. C. Voltmeters, 1000 ohms per volt, with suitable ranges to read: 148 to 154 volts (200 volt range) a.128 to…

Hickok 539B Tube Tester Instruction Manual

November 16, 2025
Hickok 539B Tube Tester Overview The Hickok 539B Tube Tester is a highly regarded tool in the world of tube testing, offering both precision and versatility. Designed to measure the…

Hickok 539C Tube Tester Instructions

November 16, 2025
Hickok 539C Tube Tester Product Usage Instructions The calibration procedure is to apply a known AC current to the plate circuit to see whether the meter agrees. The first step…

Hickok 539B & 539C Tube Tester Test Data

Test Data
Comprehensive test data for Hickok Models 539B and 539C tube testers, including filament settings, bias voltages, and minimum mutual conductance values for various vacuum tube types.

Hickok 539C Tube Tester Calibration Procedure

Calibration Procedure
Step-by-step guide for calibrating the Hickok 539C tube tester, detailing AC voltage measurements, transformer connections, resistor values, and expected meter readings for accurate tube testing.

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