With a tuning fork oscillator, the vibration forcing and the feedback are both done via induction, coils act as the bridge between the electronic and mechanical worlds. By mounting the tuning fork ...
[WilkoL’s] clock though has a most unusual clock source: a 440 Hz tuning fork. A cheap plastic dome really shows off the fork and contributes to this good-looking build. An ATTiny13 divides the ...
THE tuning-fork when its number of double vibrations, to and from in a second, or briefly its frequency, has been ascertained, is a most convenient instrument for measuring minute divisions of time.