Thursday, October 17, 2013
140W audio amplifier with IC STK070
By using the above amplifier circuit you can hear the sound quality is quite good by a high output power. Maximum voltage circuit pa approximately 55Volt DC. 70-140W output power with impedance 8Ohm.
Part List
R1 = 10K
R2 = 1K
R3 = 0.4R
R4 = 0.4R
R5 = 4.7R
C1 = 0.015
C2 = 10uF
C3 = 220uF
C4 = 0.15uF
C5 = 220uF
C6 = 47uF
C7 = 0.047uF
U1 = STK050 , STK070
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