Category Archives: Electronics

CircuitJS

Posted on 2026-09-30 by M. Eric Carr

CircuitJS is a useful, free, education-friendly circuit simulator with nice intuitive voltage/current visualization.
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Posted in Analog, Digital, Electronics, Internet, Resources, Tools | Leave a comment

Mystery Directional Device

Posted on 2026-08-30 by M. Eric Carr

Another Mystery Device is investigated. Some kind of directional control, this time. Continue reading →

Posted in Analog, Electronics, Mechanical, Reverse Engineering | Leave a comment

Stupid Op-Amp Tricks

Posted on 2026-04-30 by M. Eric Carr

Op Amps are the Swiss Army Knife of analog electronics. Continue reading →

Posted in Analog, Components, Electronics | Leave a comment

Components: LM386 audio amplifier

Posted on 2026-03-30 by M. Eric Carr

The LM386 audio amplifier is a convenient way to add a speaker amp to electronics projects. Continue reading →

Posted in Analog, Audio, Building blocks, Components, Electronics | Leave a comment