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GPDN3113 74HC112 0399400 SMBJ12CA SMBJ12CA AN6630 CXA1998 0XB6TR
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Indikator vybudenia s A277D
Tento jednoduchy indikator vybudenia s u zastaralym obvodom A277D sa moe zis pri potrebe indikacie sily audiosignalu, alebo na meracie uely napr.: zmeranie, i je baterka dobre nabita apod. Tento integrovany obvod sa u asi neda zohna, ja som ho vybral zo stareho kotuoveho magnetofonu. Dokae spina 12 LED diod, ja som prve tri dal ervene, ostatne su zelene. Trimrom R1 sa nastavuje jas diod, moete ho kudne nahradi pevnym odporom, tak ako aj ostatne dva trimre. Trimrom R2 sa nastavuje citlivos celeho obvodu, a trimrom R3 sa posuva zaiatok merania. Ja som toto zariadenie postavil na plonom spoji, ktory je trochu niie, treba si ho vak rozmerovo upravi, moja doska mala rozmery 40mm x 70mm.
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Plony spoj (zvaene) Autor: Pavol Bystrian


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