Ключевые слова: aged, ammeter, ancient, antique, black, circle, circuit, close up, closeup, current, design, device, dirty, electric, electrical, electricity, electronic, engineering, equipment, flow, gauge, glass, indicator, industrial, instrument, isolated, measure, measurement, meter, needle, old, potential, rate, resistance, retro, scale, scientific, screw, technologic, technology, test, tool, value, vintage, volt, voltage, voltmeter, weathered, zero,