Mbiri ya chitukuko cha ukadaulo wa mawu ingagawidwe m'magawo anayi: chubu, transistor, circuit yolumikizidwa ndi transistor ya field effect.
Mu 1906, American de Forrest adapanga transistor ya vacuum, yomwe idayambitsa ukadaulo wamagetsi ndi mawu a anthu. Bell Labs idapangidwa mu 1927. Pambuyo pa ukadaulo wotsutsa, chitukuko cha ukadaulo wamawu chalowa munthawi yatsopano, monga Williamson amplifier yagwiritsa ntchito bwino ukadaulo wotsutsa kuti ichepetse kwambiri kusokonekera kwa amplifier mpaka m'ma 1950, chitukuko cha amplifier ya chubu chidafika nthawi imodzi yosangalatsa kwambiri, mitundu yosiyanasiyana ya amplifier ya chubu imawonekera kosatha. Chifukwa mtundu wa mawu wa amplifier ya chubu ndi wokoma komanso wozungulira, umakondedwabe ndi okonda.
Mu zaka za m'ma 1960, kutulukira kwa ma transistors kunapangitsa kuti anthu ambiri okonda mawu alowe m'dziko lonse la mawu. Ma transistor amplifiers ali ndi makhalidwe monga kusinthasintha kwa mawu, kusinthasintha pang'ono, kuyankha pafupipafupi komanso kusinthasintha kwa mawu.
Kumayambiriro kwa zaka za m'ma 1960, dziko la United States linayambitsa ma circuits ophatikizidwa, omwe ndi mamembala atsopano a ukadaulo wa mawu. Kumayambiriro kwa zaka za m'ma 1970, ma circuits ophatikizidwa ankazindikirika pang'onopang'ono ndi makampani opanga mawu chifukwa cha khalidwe lawo lapamwamba, mtengo wotsika, voliyumu yochepa, ntchito zambiri ndi zina zotero. Mpaka pano, ma circuits ophatikizidwa a audio film ndi ma circuits ophatikizidwa a amplifier akhala akugwiritsidwa ntchito kwambiri m'ma circuits amawu.
Pakati pa zaka za m'ma 1970, Japan inapanga chubu choyamba cholimbikitsa ntchito ya field effect. Chifukwa chubu cha mphamvu ya field effect chili ndi mawonekedwe a chubu cha electron choyera, mtundu wokhuthala komanso wokoma, komanso dynamic range ya 90 dB, THD < 0.01% (100KHZ), posakhalitsa chinatchuka kwambiri mu audio. Mu ma amplifiers ambiri masiku ano, ma transistors a field effect amagwiritsidwa ntchito ngati chotulutsa chomaliza.
Bass ULF Yochokera Kunja Yoyenera Ntchito
Wokamba Zosangalatsa wa 12-inch Full Range
Nthawi yotumizira: Epulo-20-2023

