Schematic Volt

Small Power Amplifier 8W 8Ω with TDA 2030

Although the TDA2030 can deliver 20 watts of output power, I deliberately reduced the output power to about 8 watts to supply 10 watt speakers. Input sensitivity is 200mV. Higher input levels naturally will give greater output, but no distortion should be heard. the gain is set by the 47k and 1.5k resistors. The TDA2030 IC is affordable and makes a good replacement amplifier for low to medium audio power systems. Incidentally, it is speaker efficiency that determines how "loud" your music is. Small Power Amplifier Circuit diagram: Parts:

R1-2=47ohmK 1/4W        
R3= 1.5Kohm 1/4W         
R4=1.2ohm /1W        
C1-5=1uF/25V
C2-6=100uF/25V
C3-7=100nF/63V
C4=220nF/63V
D1-2=1N4001
IC1=TDA 2030