electronic of piezoelectric crystal oscillator on white background

background circuit closeup common component crystal current design device diagram disposal documentation drawing educative electric electrical electricity electronic electrotechnics electrotechnology element engineering equipment ewaste field frequency graphic gray group icon industry isolated layout many material metal network nobody nopeople object oscillator part pcb pictogram piezoelectric pile quartz radio rectangle recycling repair resonator schematic scheme science separation service set shop silvered single spare standard store symbol tech technical technology terminal time two typical various waste white