One area of research pursued the realization of a microwave oscillator based on ... Kerr combs and associated RF signals. This architecture provides a simple, robust and efficient scheme for ...

The circuit is simple enough, a high voltage passes through ... a damped oscillation at its resonant frequency. The resulting RF signal is a crude AM tone which can be received fairly simply.

It’s most often seen for AM band receivers or perhaps shortwave ham band ones, but it’s a circuit ... RF triode-pentode isn’t a radio part at all, instead it’s a mundane TV field ...