ai có sơ đồ nguyên lý như doạn clip này ko (Spectrum analyzer II - YouTube e xin mạch nguyên lý với. e cám ơn nhìu
http://translate.google.com.vn/translate?hl=vi&sl=hu&u=http://pa-elektronika.hu/kesz-projektek/14-spektrum-analizator-ii.html&ei=yF5YTvaONIOyrAftpMTDCg&sa=X&oi=translate&ct=result&resnum=1&ved=0CBoQ7gEwAA&prev=/search%3Fq%3Dhttp://www.pa-elektronika.hu/index.php%253Foption%253Dcom_content%2526view%253Darticle%2526id%253D14:spektrum-analizator-ii%2526catid%253D4:kesz-projektek%2526Itemid%253D2%26hl%3Dvi%26biw%3D1360%26bih%3D564%26prmd%3Divns
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