This circuit runs a fast battery test without the need of power supply or expensive moving-coil voltmeters. It features two ranges: when SW1 is set as shown in the circuit diagram, the device can test ...

This simple circuit tests speakers, microphones, transformers and voltage. It’s basically a very low frequency oscillator that produces extremely short ‘fruity’ pulses. The type of sound produced is ...

Snap-on’s Digital Display Circuit Tester (EECT400) is designed to detect voltage, ground and circuit integrity. An LCD display provides the circuit’s voltage value, while a backlit LED indicates red ...

This file type includes high-resolution graphics and schematics when applicable. The biggest problem with precision noise measurement is that the noise floor you’re trying to evaluate is frequently ...

We may receive a commission on purchases made from links. When undertaking DIY electrical projects at home, safety should always come first. Whether you're adding a dimmer switch, installing a new ...

We’ve all experienced the effect of electrostatic discharge at some point in our lives, the most common case being a tingling sensation one feels after touching a door knob or any metal surface. When ...