Even if you haven’t used one, you’ve probably seen the numerous ... [Qrp-Gaijin] shows how to do it with a single transistor. You can see some videos of the results, below.

An ultra-low power sensor operates using energy harvesting from various sources for efficient monitoring. The oscillator ...

The chances are that many of you will have made an FM “bug” style transmitter, a simple one-transistor oscillator usually driven by a small electret microphone. It’s also relatively ...

You can find sample setups of a simple two-transistor LC-based Peltz oscillator acting as a selective frequency ... but might find use in a pinch when one needs frequency division, or improve a simple ...