Umlando wokuthuthukiswa kobuchwepheshe bomsindo ungahlukaniswa ngezigaba ezine: i-tube, i-transistor, i-integrated circuit kanye ne-field effect transistor.

Ngo-1906, i-American de Forrest yasungula i-vacuum transistor, eyasungula ubuchwepheshe be-electro-acoustic yabantu. I-Bell Labs yasungulwa ngo-1927. Ngemva kobuchwepheshe be-feedback engemihle, ukuthuthukiswa kobuchwepheshe bomsindo kungene enkathini entsha, njengokuthi i-Williamson amplifier isebenzise ngempumelelo ubuchwepheshe be-feedback engemihle ukunciphisa kakhulu ukuphambuka kwe-amplifier kuya ngawo-1950, ukuthuthukiswa kwe-tube amplifier kwafinyelela kwesinye sezikhathi ezijabulisa kakhulu, izinhlobo ezahlukene ze-tube amplifier zivela ngokungapheli. Ngenxa yokuthi umbala womsindo we-tube amplifier umnandi futhi uyindilinga, usathandwa ngabathandi.

Ngawo-1960, ukuvela kwama-transistors kwenza inani elikhulu labathandi bomsindo langena ezweni elibanzi lomsindo. Ama-amplifiers e-Transistor anezici zokukhala okuthambile nokuhambayo, ukuphambuka okuphansi, impendulo ebanzi yamaza kanye nobubanzi obuguquguqukayo.

Ekuqaleni kwawo-1960, i-United States yaqala ukwethula amasekethe ahlanganisiwe, angamalungu amasha obuchwepheshe bomsindo. Ekuqaleni kwawo-1970, amasekethe ahlanganisiwe aqashelwa kancane kancane embonini yomsindo ngenxa yekhwalithi yawo ephezulu, intengo ephansi, umthamo omncane, imisebenzi eminingi njalo njalo. Kuze kube manje, amasekethe ahlanganisiwe omsindo wefilimu ojiyile kanye namasekethe ahlanganisiwe e-amplifier yokusebenza aye asetshenziswa kabanzi kumasekethe omsindo.

Maphakathi nawo-1970, iJapan yakhiqiza ithubhu yokuqala yokuncoma umsebenzi we-field effect. Ngenxa yokuthi ithubhu yamandla e-field effect inezici zethubhu yama-electron ahlanzekile, umbala ojiyile nomnandi, kanye nobubanzi obuguquguqukayo obungu-90 dB, i-THD < 0.01% (100KHZ), ngokushesha yathandwa kakhulu emsindweni. Kuma-amplifier amaningi namuhla, ama-transistors e-field effect asetshenziswa njengomkhiqizo wokugcina.

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