The circuit in Figure 1 seems utterly simple but demonstrates unusual behavior. It produces an almost square wave of odd-integer quartz harmonics, including its main frequency. You can determine the ...

Tuning fork crystals, also known as wrist watch crystals, are one of the classical crystal design used for time control in watches, clocks, and other electronic devices. The most common frequency of ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Precision frequency standards provide ...