Just a signal generator making a 125 kHz square wave, coupled to a two transistor buffer pumping a tuned circuit. The tuned circuit is the coil scavenged from an old RFID card, and the capacitor ...

Learn how to create a DC motor speed control circuit using a PWM-based design for precise performance. This circuit enables voltage regulation, allowing motors to operate efficiently while managing ...

The functions of basic electronic components are revealed through a series of experiments as students figure out how to create circuits that light up LEDS, sound buzzers, use resistors to dim lights, ...