Pesawat penerima radio, televisi, tape recorder, video, mesin bicara, gramophone, pickup, rewinder, amplifier, loud speaker, microphone, headphone, wirelles, vcd, optic, kaca mata, lensa-2, mikroskop, teropong, teleskop,pesawat komunikasi, telephone, airphone, walky talky, handy talky, pesawat telex, pita-2 magnetik, pita casette,pita video disk recorder, laser disk, piringan hitam, caompact disk (audio, video), antenna, booster, radar, parabola, kawat las listrik, accu, baterai, bel listrik, kabel telephone, transformator, travo, ballast, stepup, stepdown, mesin faksimili, computer, mesin hitung, kalkulator, kas register, mesin telex, printer, pesawat2 ukur, speedometer, ampere meter, meteran listrik, volta meter, modem2, monitor (program computer), cpu, stop kontak, sakelar, switch2, fiting2, kombinasi fiting, stecker, sonar, seterika listrik, mesin fotocopy, disket, pesawat2 pemadam api, alat solder listrik, mesin cuci, penyedot debu