How to Make Your Own Emission Control Leak Detector
Make a cheap smoke machine for detecting leaks in your emission control system.
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.
Quick Tip: Tracing PCB Tracks with an Aluminum Finger
A quick and easy way of tracing connections on a printed circuit board.
The Best 3D Printing Troubleshooting Guide
This troubleshooting guide is a must-have resource for any 3D printer.
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 […]
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.
How-To: Repair Christmas Lights
The low-down on Christmas tree lights and how to fix them.
