Ndi zophweka kugula zigawo zatsopano / zotsalira za stereo ndikuzigwiritsira ntchito zonse zosangalatsa. Koma kodi mwalingalira za zomwe zimapangitsa kuti zonsezi zikhudze? Mafilimu a stereo angakhale chinthu chofunikira kwambiri pa ntchito yabwino.
Cholinga cha wopatsa mphamvu ndi kulandira chizindikiro chaching'ono cha magetsi ndikuchikulitsa kapena kuchikulitsa. Pankhani yowonjezereka, chizindikirocho chiyenera kuwonjezeredwa mokwanira kuti chivomerezedwe ndi amplifier mphamvu . Pankhani ya amplifier mphamvu , chizindikirocho chiyenera kuwonjezeka kwambiri, chokwanira kuti likhale lolopesi. Ngakhale kuti amplifiers amaoneka ngati 'bokosi lakuda,' mfundo zoyambirira zimakhala zosavuta. Wopatsa amphamvu amalandira chizindikiro chochokera ku gwero (mafoni, kanyumba, CD / DVD / media player, ndi zina zotero) ndipo amapanga chithunzi chofutukuka cha chizindikiro choyambirira. Mphamvu zofunikira kuchita izi zimachokera ku chombo cha 110-volt chokwanira. Amplifiers ali ndi malumikizowo atatu: malingaliro ochokera ku gwero, zomwe zimaperekedwa kwa okamba, ndi gwero la mphamvu kuchokera pazitsulo zokhala ndi 110 volt.
Mphamvu yochokera ku 110-volts imatumizidwa ku gawo la amplifier - wotchedwa mphamvu - komwe amatembenuzidwa kuchoka ku nthawi yotsatila kufika pakali pano . Lamulo lapadera liri ngati mphamvu yomwe imapezeka m'ma battery; magetsi (kapena magetsi) amayenda mwa njira imodzi yokha. Mtsinje wotsalira umayenda mmbali zonse ziwiri. Kuchokera pa batri kapena mphamvu, mphamvu yamagetsi imatumizidwa ku variable resistor - yomwe imatchedwanso transistor. Transistor imakhala valve (ganizirani valve yamadzi) yomwe imasiyanitsa kuchuluka kwa panopa kuyenderera kudutsa dera pogwiritsa ntchito chizindikiro chochokera ku gwero.
Chizindikiro kuchokera ku gwero lothandizira amachititsa kuti transistor kuchepetse kapena kuchepetsa kukana kwake, motero kulola kuti tsopano ikuyenda. Ndalama zamakono zomwe zimaloledwa kutuluka zimadalira kukula kwa chizindikiro kuchokera muzowunikira. Chizindikiro chachikulu chimachititsa kuti phokoso liziyenda bwino, zomwe zimapangitsa kuti ziwonetsero zazikulu ziwonjezeke. Mafupipafupi a chizindikiro chowongolera amatsimikiziranso momwe transistor imagwirira ntchito mwamsanga. Mwachitsanzo, mphamvu ya Hz 100 kuchokera kuzipangizo zomwe zimapangitsa kuti transistor itsegule ndi kutseka kasanu pa mphindi. Phokoso la 1,000 Hz kuchokera kuzipangizo zowonjezera limapangitsa transistor kutsegula ndi kutseka nthawi 1,000 pamphindi. Kotero, transistor imayendera mlingo (kapena matalikidwe) ndi kawirikawiri yamakono amagetsi akutumizidwa kwa wokamba nkhani, monga valve. Umu ndi m'mene zimakhalira ntchito yowonjezera.
Onjezerani potentiometer - amadziwikanso ngati mphamvu yolamulira - ku dongosolo ndipo muli ndi amplifier. Mphamvu yothamanga imalola wogwiritsa ntchito kulamulira kuchuluka kwake komwe kumapita kwa okamba, zomwe zimakhudza mwachindunji mlingo wonse wa voliyumu. Ngakhale pali mitundu yosiyanasiyana ndi mapangidwe a amplifiers, onse amagwira ntchito mofananamo.