(An "active filter," involving transistors, can increase certain frequencies, as well as decreasing some.) A simple example, using just one resistor and one capacitor, which is called a "low-pass RC" ...

For low frequency applications (less than 100 kHz) it is typically sufficient to use only resistors and capacitors. These filters are called RC networks or RC filters. Inductors play a more important ...

Proper tire maintenance enhances grip and traction and extends the life of your vehicle’s drivetrain components. For gas-powered RC vehicles, air filters are crucial for engine performance. A clogged ...