Skip to main content


Showing posts with the label po

30W Power Audio Amplifier Circuit Diagram

Description: TIP141 si a npn silicon power darling tons designed for complementary use with TIP145, TIP146 and TP147. Can stand up to 125 W at 25°C Case Temperature, 10 A Continuous Collector Currentand has a minimum hFE of 1000 at 4 V, 5 A. This home audio amplifier can output 30W with a +- 32V symmetric power supply. If you want a stereo power amplifier please check out the other schematics. Features:
Circuit diagram:

Layout PartlistR1=1KohmR16-17=270ohmD1=9.1V 0.4W zenerR2=47KohmR18=22ohm 1WD2-3=1N4148R3=1.5KohmR19=NCQ1-2=BC550CR4-5=10KohmR20-21=0.39ohm 4WQ3=MPSA56R6=5.6KohmTR1=250ohm trimmerQ4=BC547BR7=10ohmC1=470nF 100V MKTQ5=BC212R8=47KohmC2=1nF 100V MKTQ6=BC183R9=560ohmC3=68pF ceramicQ7-8=MPSAO6R10-11=8.2KohmC4-8=22nF 100V MKTQ9=TIP141R12-15=120ohmC5-6-7=100nF 100V MKTQ10=TIP146R13=680ohmC9=47uF 25VF1-2=1.6AT FUSER14=330ohmC10-11=220uF 63VAll the resistors is 1/4W 1%except quote differently