TDA2002组成的音频前级功率放大器电路图
TDA2002组成的音频前级功率放大器电路图
TECHNICAL CHARACTERISTICS(技术指标):
Tendency of catering: 15V
Force of expense: 4,2Wrms in the 4W
Minimal signal of entry: 94mVp-p with preamplifier, 0,65Vp-p without the preamplifier.
R1
2,2KW
R2
330KW
R3
4,7KW logarithmic potentiometer
R4
330W
R5
1KW
R6
1,5W
C1, C6
100nF polyester
C2
100mF/25V ilektrolytjko's
C3, C7
1mF/25V electrolytic
C4
1000uF/25V electrolytic
C5
10uF/25V electrolytic
Q1
BC547
U1
TDA2002
LS1
Loudspeaker.
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