Ngày 26/07/2010 00:16:15 / Lượt xem: 4435 / Người đăng: biendt
Mạch khuyếch đại âm thanh 100W dùng MosFet
Linh kiện
R1=27Kohm R24=8.2ohm D1=12V 0.5W Zener
R2-11=4.7Kohm R25=10ohm 1W D2.....5=8.2V 1W Zener
R3-4=5.6Kohm TR1=470ohm trimmer L1=20 turns 0.6mm on R25
R5=47Kohm TR2=4.7Kohm trimmer Q1-2=BC 547
R6=1Kohm C1=1uF 63V mkt Q3=2N5460 fet
R7-10-21=22Kohm C2=1nF 100V* Q4-5=MPSA93
R8=12ohm C3=100uF 16V Q6-8-11=BC182
R9=1Mohm C4=100nF 100V* Q7-10=MPSA43
R12=33ohm C5-7=22uF 16V Q9=BC212
R13-20=82ohm C6=4.7pF ceramic Q12=2SK134 or 2SK135
R14=33ohm C8=47uF 16V Q13=2SJ49 or 2SJ50
R15=2.7Kohm C9=1nF 100V*
R16=270ohm C10-11=100uF 100V *polyester or mylar
R17-19=680ohm C12-14=100nF 250V mkt
R18=33Kohm C13=150nF 100V mkt
R22-23=0.33ohm 5W C15=100uF 35V