The. crystal. oscillator. circuit. sustains. oscillation. by. taking. a . voltage. signal. from. the. quartz. resonator. amplifying. it. and. feeding. it. back. to. the. resonator. The. rate. of. expansion. and . contraction. of. the. quartz. is. the. resonant. frequency. and. is . determined. by. the. cut. and. size. of. the. crystal. When. the. energy. of. the. generated. output. frequencies. matches. the. losses. in. the. circuit. an. oscillation. can. be. sustained.
A. regular. timing. crystal. contains. two. electrically. conductive . plates. with. a. slice. or. tuning. fork. of. quartz. crystal. sandwiched. between. them. During. startup. the. circuit. around. the. crystal. applies. a. random . noise. AC. signal. to. it. and. purely. by. chance. a. tiny. fraction. of. the. noise. will. be. at. the. resonant. frequency. of. the. crystal. The. crystal. will. therefore. start. oscillating. in. synchrony . with. that. signal. As. the. oscillator. amplifies. the. signals. coming. out. of. the. crystal. the. signals. in. the. crystal. frequency. band. will. become. stronger. eventually. dominating. the. output. of. the. oscillator. Natural. resistance. in. the. circuit. and. in. the. quartz. crystal. out. all . the. unwanted. frequencies.
The. output. frequency. of. a. quartz. oscillator. can. be. either. the. fundamental. resonance. or. a. multiple. of. the. resonance. called. an. overtone. frequency. High. frequency. crystals. are. often. designed. to. operate. at. third. fifth. or. seventh. overtones.Verdict: Win [8/10] (mute witnesses to the game)