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

Ngo-1906, i-American de Forrest yasungula i-vacuum transistor, eyaphayona ubuchwepheshe bomuntu we-electro-acoustic. I-Bell Labs yasungulwa ngo-1927. Ngemva kobuchwepheshe bempendulo engalungile, ukuthuthukiswa kobuchwepheshe bomsindo sekungene enkathini entsha, njenge-Williamson amplifier isebenzise ngempumelelo ubuchwepheshe bempendulo engalungile ukunciphisa kakhulu ukuhlanekezela kwe-amplifier kuma-1950s, ukuthuthukiswa kwe-amplifier ye-tube kwafinyelela kwesinye sezikhathi ezijabulisa kakhulu, izinhlobonhlobo zama-amplifiers angenasiphelo avela ekugcineni. Ngenxa yokuthi umbala womsindo we-tube amplifier umnandi futhi uyindilinga, usathandwa ngabashisekeli.

Ngawo-1960, ukuvela kwama-transistors kwenza inqwaba yabathandi bomsindo bangena emhlabeni obanzi womsindo. Ama-amplifiers e-Transistor anezici ze-timbre ethambile nenyakazayo, ukuhlanekezela okuphansi, ukusabela kwemvamisa ebanzi kanye nobubanzi obuguqukayo.

Ekuqaleni kwawo-1960, i-United States yaqala ukwethula izifunda ezihlanganisiwe, ezingamalungu amasha obuchwepheshe bomsindo. Ekuqaleni kwawo-1970, izifunda ezihlanganisiwe zaqashelwa kancane kancane imboni yomsindo ngenxa yekhwalithi yazo ephezulu, intengo ephansi, ivolumu encane, imisebenzi eminingi nokunye. Kuze kube manje, amasekethe ahlanganisiwe womsindo wefilimu aminyene kanye namasekethe ahlanganisiwe we-amplifier asetshenziswe kabanzi kumasekhethi omsindo.

Maphakathi nawo-1970, iJapan yakhiqiza ithubhu yokuqala yokuncoma umsebenzi wensimu. Ngenxa yokuthi ishubhu yamandla esebenza emkhakheni inezici zeshubhu ye-electron emsulwa, umbala owugqinsi nomnandi wethoni, kanye nobubanzi obuguquguqukayo obungu-90 dB, THD <0.01% (100KHZ), ngokushesha yaduma emsindweni. Kuma-amplifiers amaningi namuhla, ama-transistors omphumela wensimu asetshenziswa njengomphumela wokugcina.

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