Ekiwujjo kya kirisitaalo kikozesa ekikolwa kya piezoelectric ekya kirisitaalo ya quartz. Okuyita mu nsengekera ya nkulungo eyeetongodde, kireetera kirisitaalo okukankana ku firikwensi eyeetongodde. Frequency eno enywevu nnyo era tekwatibwa mangu mbeera ya bweru. Crystal oscillators zisobola okukozesebwa nga frequency references mu byuma bya electronic, nga ziwa frequency signals entuufu eri circuits endala.
