Umlando wentuthuko wobuchwepheshe bomsindo ungahlukaniswa ngezigaba ezine: ishubhu, i-transistor, i-transistor yesekethe yokuhlanganisa neyomphumela.

Ngo-1906, i-American de forrest yasungulwa i-Vacuum Transistor, eyayiphayona ubuchwepheshe be-Human Electro-acoustic technology. IBel Labs yasungulwa ngo-1927. Ngemuva kobuchwepheshe obubi bezobuchwepheshe, ukuthuthukiswa kwezobuchwepheshe kufakwe inkathi entsha, okuthi i-Williamson Amplifier isebenzise ngempumelelo ubuchwepheshe be-amplifier kakhulu, ukuthuthukiswa kwe-amplifier yeshubhu kufinyelele esinye sezikhathi ezijabulisa kakhulu, kuvela ama-amplifiers ezinxushukuma ngaphakathi. Ngoba umbala womsindo we-amplifier yeshubhu umnandi futhi uyindilinga, usakhethwa ngabathandi.

Ngawo-1960s, ukuvela kwama-transtors kwenza inani elikhulu labathandi bomsindo bangene emhlabeni obanzi womsindo. Ama-Transistor amplifiers anezici ze-timbre ezintekenteke futhi ezihambayo, ukuhlanekezela okuphansi, ukuphendula imvamisa okubanzi kanye nobubanzi obunamandla.

Ngasekuqaleni kweminyaka yo-1960, i-United States yaqala yaqala yaqala amasekethe ahlanganisiwe, angamalungu amasha obuchwepheshe bomsindo. Ekuqaleni kweminyaka yo-1970, imibuthano ehlanganisiwe yatholwa kancane kancane yimboni ezwakalayo ngenxa yekhwalithi yayo ephezulu, intengo ephansi, ivolumu elincane, imisebenzi eminingi nokunye. Kuze kube manje, ama-poly audio audio audio adidiyelwe kanye namasekethe asebenzayo we-amplifier ahlanganisiwe asetshenziswe kabanzi emibuthanweni elalelwayo.

Maphakathi nawo-1970s, iJapan ikhiqize imfundo yokuqala yokuncoma yomsebenzi. Ngoba i-Field Effect Power Tube inezimpawu ze-tube ye-elektroni emsulwa, umbala wethoni obukhulu futhi emnandi, nobubanzi obunamandla we-90 DB, i-THD <0.01% (100KHZ), ngokushesha kwathandwa ku-audio. Kuma-amplifier amaningi namuhla, ama-transistors ensimu asetshenziswa njengokukhipha kokugcina.

 I-bass ulf engenisiwe efanelekile ngephrojekthi

I-12-intshi ephelele yokuzijabulisa Somlomo