| Brushed DC motors are increasingly being replaced by brushless (BLDC) and stepper motor competitors. But their use still makes sense, as the...
All items tagged with Test & Measurement and Circuits & Circuit Design (34)
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| Want to test batteries or solar panels? You need a load resistor. With this electronic load resistor project, you can not only simulate a lo...
| Discover how to build an adjustable power supply with voltage control and current limiting using proven techniques. Perfect for single or du...
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| How accurate is your clock source? You can use this compact stand-alone crystal tester to check the correct functionality of an unknown quar...
| Nanosecond current pulses arise from avalanche breakdown in virtually any diode. Here some experiments exploring these in Zener diodes, LEDs...
| Recently, both Zoyi and Fnirsi have released affordable smart tweezers that also measure inductance, and for just a few dozen euros. In this...
| This continuity tester uses just 100 mV across the probes, avoiding interference from semiconductors and large capacitance. It is simple to...
| Do you need a multifunction frequency meter for making time-related measurements? Take a look at this user-friendly design from 2004. It’s a...
| Are you struggling with interference in your electronics projects, or have you ever been involved in electromagnetic compliance (EMC) testin...
| The "USB Magic Eye" circuit was presented back in 2010 as a handy CPU meter with a retro look. A USB port provided power and control, and a...