toroidal core inductor, transformer or electrolytic capacitors on pcb detail

aluminum black blue board capacitance capacitor choke circuit closeup coil component condensator condenser conductor converter copper core detail device diode electric electrical electricity electrolytic electromagnetic electronic electrotechnics electrotechnology energy engineering ewaste ferrite field induction inductor industrial industry inside inverter macro magnetic metal mode nobody orange pcb power printed recycling repair resistor ring science screw service spiral storage store supply switched switcher switchingmode technology terminal toroid transfer transformer voltage waste white winding wire wrapped yellow