Ключевые слова: board, chip, circuit, dark, digital, electronic, electronics, equipment, handle, ic, instruments, lab, laboratory, measure, measurement, microchip, microcircuit, modern, multimeter, nobody, oscillogram, oscillograph, oscilloscope, pcb, power, power supply, printed, professional, radioelectronics, repair, scope, sinusoid, supply, test, testing, tool, wires,