What is a PWM (Pulse Width Modulation) signal?
PWM signals are increasingly used in computers and microcontrollers (Arduino or ESP8266). Let's see what they are in an understandable way!
Electronics
The ESR (Equivalent Series Resistance) of Capacitors
ESR of capacitors is the main cause of problems in switching power supplies. Here's what you need to know.
The "Transistortester" component tester or LCR-TC1
The LCR-TC1 meter is a simply amazing device. I couldn't live without it (well, yes, but my life would be a bit harder).