troubleshooting

How to Make Your Own Emission Control Leak Detector

How to Make Your Own Emission Control Leak Detector

Make a cheap smoke machine for detecting leaks in your emission control system.

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Build a Simple PantoProbe for High-Precision Electronics Troubleshooting

Build a Simple PantoProbe for High-Precision Electronics Troubleshooting

3D print a PantoProbe, a simple device for amplifying your probe precision in electronics testing.

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Quick Tip: Tracing PCB Tracks with an Aluminum Finger

Quick Tip: Tracing PCB Tracks with an Aluminum Finger

A quick and easy way of tracing connections on a printed circuit board.

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The Best 3D Printing Troubleshooting Guide

The Best 3D Printing Troubleshooting Guide

This troubleshooting guide is a must-have resource for any 3D printer.

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Projects with Ryan Slaugh: Simple Amplifier

Projects with Ryan Slaugh: Simple Amplifier

Building upon my last video, I’ve decided to make a simple circuit using some op-amps.  One is the general op-amp LM741. The other is a specific op-amp, LM386, that is designed for audio amplification. This circuit can be used to amplify microphones or be used as a circuit sniffer depending on what you connect to […]

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Why Do Christmas Lights All Go Out When One Bulb Blows?

Why Do Christmas Lights All Go Out When One Bulb Blows?

John Graham-Cumming asks this holiday lights question and provides a nerd-friendly troubleshooting solution.

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How-To: Repair Christmas Lights

How-To: Repair Christmas Lights

The low-down on Christmas tree lights and how to fix them.

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