Lm386 Audio Amp Schematic Symbol. A great sounding lm386 audio amplifier. Nowadays we all use class d amplifiers most of the time because it is more efficient small size and most importantly the audio quality is also great.
Most of the component values in this circuit aren t critical. The gain is internally set to 20 but it can be modified from 20 to. The ic lm386 is a 8 pin tiny power amplifier chip specially made for operating under relatively low voltage parameters yet provide considerable amplification.
The lm386 is a versatile small power amplifier designed for use in low voltage consumer applications.
Now that you ve seen the bare minimum of what it takes to make an audio amplifier with the lm386 lets build a higher fidelity version with an adjustable gain control. Schematic of lm386 audio amplifier circuit. This may be a class ab amplifier like lm386 i c. The 1 lm386 chip amp does all the amplification in the ruby amp.
