Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: An zaɓi ainihin adadi na layin 525 sakamakon sakamakon iyakokin fasahohin bututu na yau da kullun. A cikin tsarin TV na farko, an yi amfani da oscillator mai sarrafa wutar lantarki sau biyu na layin kwance, kuma an raba wannan mitar da yawan layin da aka yi amfani da su (a wannan yanayin 525) don ba da mitar filin (60 Hz a wannan yanayin). An kwatanta wannan mitar tare da mitar layin wutar lantarki na 60 Hz kuma duk wani bambanci da aka gyara ta hanyar daidaita mitar babban oscillator. Don dubawa mai haɗuwa, ana buƙatar layi na layi a kowane firam don yin nesa na tsaye daidai don filayen da ba daidai ba, wanda ke nufin ma'anar oscillator ya kamata a raba shi da wani lamari.  Tambaya: Layi nawa ne?
525 na shekara