We’re talking of course about the air-dielectric variable capacitor, the tuning element for millions of radio receivers back in the day but now long ago replaced by much flimsier polymer ...

The actual AC coupling capacitors can be located either on or off the die/component. In most cases, the AC coupling is separate from the component, and you must use discrete capacitors on the PCB ...

Connecting dropping resistors in series with resistive loads can lead to energy dissipation. In AC circuits, using dropping ...

A study led by Dr. Haitham Kanakri and Dr. Euzeli Dos Santos, Jr., has unveiled a novel capacitorless solid-state power ...