Loudspeaker, salon speaker, microphone, radio, tape recorder, amplifier, equalizer, televisi, video, VCD, transistor, booster, antenna, parabola, stabilizer, trafo, adaptor, eletronik kondensator, elektronik kondensor, kapasitor, resistor, baterai, accu, alarm, solder, battery charger: alat mengisi listrik/setrum pada baterai, laser disk, pita cassette, ballast, transformator, step-up, step-down, stop kontak, ampere meter, komputer