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vi.fmuser.org -> Kivietinamu
cy.fmuser.org -> Kiwelsh
yi.fmuser.org -> Yiddish
Maelezo:
Hii ni Compact tatu transistor, regenerative receiver na maoni fasta. Ni sawa katika kanuni ya ZN414 redio IC ambayo sasa ni kubadilishwa na MK484. kubuni ni rahisi na unyeti na kuchagua ya receiver ni nzuri.
Vidokezo:
Wote kwa ujumla madhumuni transistors wanapaswa kufanya kazi katika mzunguko huu, mimi kutumika tatu transistors BC549 katika mfano wangu. mzunguko tuned imeundwa kwa ajili ya wimbi kati, lakini mzunguko itakuwa na kazi hadi masafa ya juu sana kama tofauti coil tuning na capacitor ni kutumika. Nilikuwa fimbo ferrite na capacitor tuning kutoka redio ya zamani ambayo tuned kutoka takriban 550 - 1600kHz. Q1 na Q2 kuunda compund transistor jozi akishirikiana na faida ya juu na Impedans juu sana ya pembejeo. Hii ni muhimu ili kama si kwa shehena mno mzunguko tank. Q1 kazi katika taifa linaloongoza mfuasi, Q2 kawaida emitter, binafsi kuleta utulivu upendeleo ni kupitia resistor 120k na coil tuning.
Kinzani ya 120k hutoa maoni ya kuzaliwa upya, kati ya pato la Q2 na pembejeo ya mzunguko wa tank na thamani yake huathiri utendaji wa jumla wa mzunguko mzima. Maoni mengi sana na mzunguko utakuwa thabiti ukitoa "sauti ya kuomboleza". Maoni hayatoshi na mpokeaji anakuwa "kiziwi". Ikiwa mzunguko unabadilika, basi thamani ya R1 inaweza kupunguzwa; jaribu 68k. Ikiwa kuna ukosefu wa unyeti, basi jaribu kuongeza R1 hadi karibu 150k. R1 inaweza pia kubadilishwa na resisor iliyosimamishwa iseme 33k na kontena la preset la 100k. Hii itatoa marekebisho ya unyeti na kuchagua kwa mpokeaji.
Transistor Q3 ina madhumuni ya aina mbili; hufanya demodulation ya wakati RF carrier wakati huo huo, amplifying ishara ya kusikiliza. Ngazi ya redio inatofautiana juu ya nguvu ya kituo cha kupokea lakini nilikuwa na kawaida 10-40 MV. Hii itakuwa moja kwa moja kuendesha headphones Impedans juu au unaweza kulishwa katika amplifier zaidi.
Ujenzi:
Uunganisho wote unapaswa kuwa mfupi, mpangilio wa veroboard au tagstrip yanafaa. Capacitor tuning ina sahani fasta na kusonga. Sahani zinazohamia zinapaswa kushikamana na mwisho wa "baridi" wa mzunguko wa tank, hii ndio msingi wa Q1, na sahani zilizowekwa kwa "mwisho wa moto" wa coil, juisi ya R1 na C1. Ikiwa unganisho kwenye capacitor hubadilishwa, basi kusogeza mkono wako karibu na capacitor itasababisha utulivu usiofaa na kufutwa.
Hatimaye hapa ni baadhi ya hundi voltage kutoka breadboard prototype.This yangu inapaswa kusaidia katika kuamua mzunguko kufanya kazi: -
Wote vipimo kufanywa na betri safi 9volt na tatu transistors BC109C kwa heshima na terminal betri hasi.
Q1 (b) 1.31V
Q2 (b) 0.71V
Q2 (c) 1.34V
Q3 (b) 0.62V
Q3 (c) 3.87V
bidhaa zetu nyingine:
Kifurushi cha Vifaa vya Kitaalam vya Kituo cha Redio cha FM
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Ingiza barua pepe kupata mshangao
es.fmuser.org
it.fmuser.org
fr.fmuser.org
de.fmuser.org
af.fmuser.org -> Kiafrikana
sq.fmuser.org -> Kialbeni
ar.fmuser.org -> Kiarabu
hy.fmuser.org -> Kiarmenia
az.fmuser.org -> Kiazabajani
eu.fmuser.org -> Kibasque
be.fmuser.org -> Kibelarusi
bg.fmuser.org -> Kibulgaria
ca.fmuser.org -> Kikatalani
zh-CN.fmuser.org -> Kichina (Kilichorahisishwa)
zh-TW.fmuser.org -> Wachina (Jadi)
hr.fmuser.org -> Kikroeshia
cs.fmuser.org -> Kicheki
da.fmuser.org -> Kidenmaki
nl.fmuser.org -> Kiholanzi
et.fmuser.org -> Kiestonia
tl.fmuser.org -> Kifilipino
fi.fmuser.org -> Kifini
fr.fmuser.org -> Kifaransa
gl.fmuser.org -> Kigalisia
ka.fmuser.org -> Kijojiajia
de.fmuser.org -> Kijerumani
el.fmuser.org -> Kiyunani
ht.fmuser.org -> Kikrioli cha Haiti
iw.fmuser.org -> Kiebrania
hi.fmuser.org -> Kihindi
hu.fmuser.org -> Kihungari
is.fmuser.org -> Kiaislandi
id.fmuser.org -> Kiindonesia
ga.fmuser.org -> Kiayalandi
it.fmuser.org -> Italia
ja.fmuser.org -> Kijapani
ko.fmuser.org -> Kikorea
lv.fmuser.org -> Kilatvia
lt.fmuser.org -> Kilithuania
mk.fmuser.org -> Kimasedonia
ms.fmuser.org -> Kimalesia
mt.fmuser.org -> Kimalta
no.fmuser.org -> Kinorwe
fa.fmuser.org -> Kiajemi
pl.fmuser.org -> Kipolishi
pt.fmuser.org -> Kireno
ro.fmuser.org -> Kiromania
ru.fmuser.org -> Kirusi
sr.fmuser.org -> Mserbia
sk.fmuser.org -> Kislovakia
sl.fmuser.org -> Kislovenia
es.fmuser.org -> Kihispania
sw.fmuser.org -> Kiswahili
sv.fmuser.org -> Kiswidi
th.fmuser.org -> Thai
tr.fmuser.org -> Kituruki
uk.fmuser.org -> Kiukreni
ur.fmuser.org -> Kiurdu
vi.fmuser.org -> Kivietinamu
cy.fmuser.org -> Kiwelsh
yi.fmuser.org -> Yiddish
FMUSER Wirless Kusambaza Video Na Sauti Ni Rahisi Zaidi!
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