How to make a 20 watt stereo amplifier | By Rimul Shaikh

Here is a small 20-watt amplifier circuit diagram. This circuit is for many hobbyists who do not get good quality low watt diagrams. A 5 pin IC is used in the circuit, two ICs need to be used for stereo. The 1-ohm resistors used in the circuit should use 1 watt and the electrolytic capacitors should be at least 50volt, and the 100 nanofarad capacitors should be placed as close to the IC as possible to reduce the oscillation. Amp will need +/- 25 Volt to run, maximum +/- 30 volts can never be more. It has good sound quality and low cost. A good quality aluminum heatsink must be fitted with Amp IC.

Power supply: The power supply circuit has been provided with the amp so that there is no problem with the power supply. Make a power supply according to the diagram with a 16-0-18 volt and a 3 amp transformer.