Txoj kev txhim kho keeb kwm ntawm cov tshuab thev naus laus zis tuaj yeem faib ua plaub theem: Raj, treistor, ua ke sib txuas ntawm Circuit Court.

Xyoo 1906, American de Forrest tsim lub tshuab nqus tsev, uas yog cov lag luam tib neeg electro-acoustic thev naus laus zis. Tswb lab ntawv tau tsim nyob rau xyoo 1927. Tom qab cov lus qhia thev naus laus zis tau ua tiav cov lus qhia tsis zoo rau lub sijhawm tshiab, xws li lub sijhawm tsis zoo tshaj plaws, muaj ntau yam ntawm cov raj ua kom tsis kawg. Vim tias lub suab xim ntawm cov raj huab cua sov yog qab zib thiab puag ncig, nws tseem nyiam los ntawm cov neeg nyiam.

Thaum xyoo 1960, qhov tshwm sim ntawm cov transistors ua cov neeg nyiam lub suab ntawm cov audio lub ntiaj teb. Lub Transistor Amplifiers muaj cov yam ntxwv ntawm kev sib dhos thiab txav chaw timbre, qis distortion, dav ntau yam teb thiab muaj ntau yam.

Nyob rau hauv thaum xyoo 1960, Tebchaws Asmeskas ua ntej qhia kev sib xyaw ua ke, uas yog cov tswv cuab tshiab ntawm cov thev naus laus zis thev naus laus zis. Thaum xyoo 1970, kev sib xyaw ua ke tau yooj yim pom los ntawm kev lag luam suab vim tias lawv cov nqi siab, cov nqi qis, ntau lub zog, ntau lub zog thiab lwm yam haujlwm. Txog tam sim no, tuab zaj duab xis suab sib xyaw ua ke thiab ua haujlwm ua haujlwm ua haujlwm tau sib xyaw ua ke tau siv dav hauv lub suab ciri.

Nyob rau hauv nruab nrab-1970s, Nyij Pooj tsim cov nyhuv thib ib ua haujlwm rau raj. Vim hais tias lub teb nyhuv fais fab muaj cov yam ntxwv ntawm cov ntshiab electron raj, tuab thiab qab zib thiab qab zib lub suab nkauj, thiab qab zib zoo nkauj), nws tsis tuaj yeem nrov hauv lub suab. Hauv ntau lub suab xaib niaj hnub no, daim teb nyhuv trimistors tau siv los ua cov zis kawg.

 Ntshuam Bass Ulf tsim nyog rau Project

12-inch puv ntau txoj kev lom zem