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Deskripsyon:
Bati alantou yon LM380, anplifikatè sa a gen ladan kontwòl ton ak elektwonik "mou oblije chanje". Chan de kous la mou asire pouvwa se bati piti piti elimine thc dc la.
nòt:
Se oblije chanje nan mou pèmèt pa yon tranzistò BD131 branche kòm yon switch nan konfigirasyon disip emeteur. Se pèseptè a branche nan yon vòltaj ekipman pou pèmanan, enduktansdèstokaj nan seri 2H sèvi sèlman nan filtre deyò hum ekipman pou pouvwa. Sa a enduktansdèstokaj ki pa twò enpòtan epi yo ka omisyon si se rezèv la DC byen lis. Se vòltaj nan kontwòl aplike nan tèminal nan baz BD131, condensateur la 10u ak rezisteur 10k gen yon objektif doub: -
mwen) yon chaj gradyèl nan condensateur la 10u asire ke tranzistò la pral chanje linear soti nan 0 vòlt an rezèv plen, ak
ii) sèvi kòm yon filtè hum asire yon trè lis dc ekipman pou kontwole yo anplifikatè ak ton.
LED1 pral limen lè anplifikatè a sou. Vòltaj la kontwòl ta dwe depreferans dwe 0 vòlt lè anplifikatè a se koupe ak plen vòltaj ekipman pou lè sou. LM380 la montre kondwi de 8 ohm loupspeakers, chaj la Se poutèt sa 4 om. Kondansatè a 4u7 aji kòm yon kwazman bit, pi ba frekans yo antrave e konsa loudspeaker sa a pouvwa gen yon "tweeter" kalite.
Tone Kontwole:
D 'a nan sa a se anplifikatè a se atravè yon kontwòl ton ki baze sou konsepsyon an baxendall. BC109C nan premye sèvi kòm yon tanpon, ofri yon enpedans opinyon segondè. Siyal la pwodiksyon manje atravè yon 10u kondansateur rive nan rezo a kontwòl ton. Sa a rezo pasif nan rezistans ak kondansateur atenu frekans wo ak ba. Se kontwòl la bas santre sou 100Hz ak triplet kontwòl 10kHz. BC109C nan dezyèm anplifyan pèt yo soti nan kontwòl nan ton an, an jeneral kontwòl la ton bay apeprè + 6dB ranfòse ak-20dB koupe. Al gade nan anonse a trase pi ba a:
Tras yo montre maksimòm leve, koupe maksimòm ak repons lan ak kontwole ton nan yon pozisyon nan sant. Gen pouvwa pou difikilte nan jwenn tranzistò BC109C, men tranzistò BC108C pral fè yon ranplasman ideyal.
LM380 brochaj:
lòt pwodwi nou an:
Pwofesyonèl pakè ekipman estasyon radyo FM
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es.fmuser.org
it.fmuser.org
fr.fmuser.org
de.fmuser.org
af.fmuser.org -> Afriken
sq.fmuser.org -> Albanyen
ar.fmuser.org -> Arab
hy.fmuser.org -> Armenian
az.fmuser.org -> Azerbaydjan
eu.fmuser.org -> Basque
be.fmuser.org -> Belarisyen
bg.fmuser.org -> Bulgarian
ca.fmuser.org -> Katalan
zh-CN.fmuser.org -> Chinwa (senplifye)
zh-TW.fmuser.org -> Chinwa (Tradisyonèl)
hr.fmuser.org -> Kwoasyen
cs.fmuser.org -> Czech
da.fmuser.org -> Danwa
nl.fmuser.org -> Olandè
et.fmuser.org -> Estonyen
tl.fmuser.org -> Filipino
fi.fmuser.org -> Finnish
fr.fmuser.org -> Franse
gl.fmuser.org -> Galisyen
ka.fmuser.org -> Georgian
de.fmuser.org -> Alman
el.fmuser.org -> Greek
ht.fmuser.org -> Kreyòl ayisyen
iw.fmuser.org -> ebre
hi.fmuser.org -> Hindi
hu.fmuser.org -> Hungarian
is.fmuser.org -> Icelandic
id.fmuser.org -> Endonezyen
ga.fmuser.org -> Ilandè
it.fmuser.org -> Italyen
ja.fmuser.org -> Japonè
ko.fmuser.org -> Koreyen
lv.fmuser.org -> Latvian
lt.fmuser.org -> Lithuanian
mk.fmuser.org -> Masedwan
ms.fmuser.org -> Malay
mt.fmuser.org -> Maltese
no.fmuser.org -> Norwegian
fa.fmuser.org -> Pèsik
pl.fmuser.org -> Polonè
pt.fmuser.org -> Pòtigè
ro.fmuser.org -> Romanian
ru.fmuser.org -> Ris
sr.fmuser.org -> Sèb
sk.fmuser.org -> Slovak
sl.fmuser.org -> Slovenian
es.fmuser.org -> Panyòl
sw.fmuser.org -> Swahili
sv.fmuser.org -> Syèd
th.fmuser.org -> Thai
tr.fmuser.org -> Tik
uk.fmuser.org -> Ikrenyen
ur.fmuser.org -> Oudou
vi.fmuser.org -> Vietnamese
cy.fmuser.org -> Welsh
yi.fmuser.org -> Yiddish
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