colored wire winding of air core coils in circuit board on white background

air aircore analog background board capacitor choke circuit closeup coil coils component copper core design device digital disassembled dismantled disposal electric electrical electromagnetic electronic electrotechnical electrotechnics electrotechnology engineering equipment ewaste frequency front golden green helical high inductance induction inductor inductors industry inside magnetic metal module nobody nopeople opened part pcb radio radiofrequency receiver recycle red side signal solenoid strip tantalum technology television tuner twisted view voltage white winding wire