Pesawat penerima radio, televisi, tape recorder, video, mesin bicara, gramaphone, pickup, rewinder, amplifier, loud speaker, mocrophone, megaphone, headphone, wireless, VCD optik, kacamata dan bagian-bagiannya, lensa, mikroskop, teleskop, pesawat komunikasi, telephone, airphone, walky talky, handy talky, pesawat telex, pita2 magnetik, pita kaset, pita video disk, recorder, laser disk, piringan hitam, compact disk, antena, booster, radar, parabola, accu, baterai, bellistrik, kabel telepon, mesin2 bicara, transformator, travo, ballast, stepup, stepdown, mesin faksimil, komputer, mesin hitung, kalkulator, kas register, mesin telex, printer, pesawat2 ukur, spedometer, ampere meter, meteran listrik, voltameter, modem, monitor (program komputer), CPU, Stop Kontak,saklar, fiting2, switch2, kombinasi fiting, stacker, sonar, setrika listrik, mesin fotocopy, disket, pesawat2 pemadam api, alat solder listrik