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Introduction to the Heathkit AC Voltmeter model.
Lists various 1/2-watt resistors with tolerance and circuit numbers.
Lists various capacitors, including electrolytic, disc, and mica types.
Details diodes, transistors, and integrated circuits with part numbers.
Lists metal parts for chassis, panel, and bracket assembly.
Provides essential notes and guidance for kit assembly.
Lists essential tools needed for building the kit.
Illustrates mounting feet and labels on the chassis bottom.
Details mounting banana jacks on the rear panel.
Steps to safely turn on the AC Voltmeter.
Explains how to interpret voltage and dB readings on the meter scales.
Important safety warnings for measuring voltages.
Instructions on setting front panel controls for voltage tests.
Guide to using the dB OFFSET control for reference adjustments.
Explanation of decibel definition and its use in measurements.
Steps for calibrating the voltmeter using internal adjustments.
Adjusting the bias for proper circuit operation.
Calibrating the AC-DC converter circuit for accurate readings.
Description of the input attenuator and high-impedance amplifier.
Explanation of the high-gain amplifier stage.
Details the AC-DC converter's role in rectifying signals.
Basic visual checks and inspection for common issues.
Steps to localize issues within specific circuit areas.
Specific checks for problems with voltage measurement functions.
Details the full-scale voltage ranges and number of steps.
Outlines the accuracy for voltage and dB measurements.
Information on how to order replacement parts from Heath.
Details on how to send a kit for professional repair.
Introduction to the Heathkit AC Voltmeter model.
Lists various 1/2-watt resistors with tolerance and circuit numbers.
Lists various capacitors, including electrolytic, disc, and mica types.
Details diodes, transistors, and integrated circuits with part numbers.
Lists metal parts for chassis, panel, and bracket assembly.
Provides essential notes and guidance for kit assembly.
Lists essential tools needed for building the kit.
Illustrates mounting feet and labels on the chassis bottom.
Details mounting banana jacks on the rear panel.
Steps to safely turn on the AC Voltmeter.
Explains how to interpret voltage and dB readings on the meter scales.
Important safety warnings for measuring voltages.
Instructions on setting front panel controls for voltage tests.
Guide to using the dB OFFSET control for reference adjustments.
Explanation of decibel definition and its use in measurements.
Steps for calibrating the voltmeter using internal adjustments.
Adjusting the bias for proper circuit operation.
Calibrating the AC-DC converter circuit for accurate readings.
Description of the input attenuator and high-impedance amplifier.
Explanation of the high-gain amplifier stage.
Details the AC-DC converter's role in rectifying signals.
Basic visual checks and inspection for common issues.
Steps to localize issues within specific circuit areas.
Specific checks for problems with voltage measurement functions.
Details the full-scale voltage ranges and number of steps.
Outlines the accuracy for voltage and dB measurements.
Information on how to order replacement parts from Heath.
Details on how to send a kit for professional repair.
General| Category | Multimeter |
|---|---|
| Model | IM-5238 |
| Manufacturer | Heathkit |
| Display Type | Analog |
| Diode Test | No |
| Battery Test | Yes |
| Power Source | Battery |
| Functions | Voltage, Current, Resistance |
| Continuity Test | Yes |
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