Nalane ea nts'etsopele ea theknoloji ea molumo e ka aroloa ka mekhahlelo e mene: tube, transistor, potoloho e kopantsoeng le transistor ea tšimo.

Ka 1906, American de Forrest e ile ea qapa vacuum transistor, e ileng ea bula theknoloji ea motho ea motlakase oa motlakase. Bell Labs e qapiloe ka 1927. Ka mor'a thekenoloji ea maikutlo a fosahetseng, nts'etsopele ea theknoloji ea molumo e kene mehleng e ncha, joalo ka Williamson amplifier e sebelisitse ka katleho theknoloji e mpe ea maikutlo ho fokotsa haholo ho sotha ha amplifier ho fihlela lilemong tsa bo-1950, tsoelo-pele ea amplifier ea tube e fihlile nako e 'ngoe e thabisang ka ho fetisisa, mefuta e sa tšoaneng ea li-amplifiers tse sa feleng li hlaha qetellong. Hobane 'mala oa molumo oa amplifier ea tube o monate ebile o pota-potile, o ntse o ratoa ke ba chesehelang.

Ka bo-1960, ho hlaha ha li-transistors ho ile ha etsa hore palo e kholo ea batho ba chesehelang molumo e kene lefatšeng le pharalletseng la molumo. Li-amplifiers tsa Transistor li na le litšobotsi tsa timbre e bonolo le e tsamaeang, ho khopama ho tlase, karabelo ea maqhubu a pharalletseng le mefuta e fapaneng e matla.

Mathoasong a lilemo tsa bo-1960, United States e ile ea qala ho hlahisa lipotoloho tse kopantsoeng, tseo e leng litho tse ncha tsa theknoloji ea molumo. Mathoasong a lilemo tsa bo-1970, lipotoloho tse kopanetsoeng li ile tsa tsejoa butle-butle ke indasteri ea molumo ka lebaka la boleng ba tsona bo phahameng, theko e tlaase, molumo o monyenyane, mesebetsi e mengata joalo-joalo. Ho tla fihlela joale, li-circuits tse kopaneng tsa molumo oa lifilimi le li-circuits tse kopaneng tsa amplifier li 'nile tsa sebelisoa haholo lipotolohong tsa molumo.

Bohareng ba lilemo tsa bo-1970, Japane e ile ea hlahisa tube ea pele ea tlhahiso ea tšebetso ea tšimo. Hobane tube ea matla ea tšimo e na le litšobotsi tsa "electron tube" e hloekileng, 'mala o motenya le o monate, le mefuta e mengata ea 90 dB, THD <0.01% (100KHZ), haufinyane e ile ea tsebahala ka molumo. Ho li-amplifiers tse ngata kajeno, li-transistors tsa tšimo li sebelisoa e le tlhahiso ea ho qetela.

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