300w Audio Amplifier Circuit Diagram Pcb. So after few days of ordering pcb s i got the pcb samples shown in the below pictures. 2w 2w stereo using 3 lm386 here is an lm386 stereo audio amplifier circuit 2 watts.

The output stage works in class ab trimmer p1 is used to set the quiescent current which is temperature stabilized by transistor t2 which together with the divider r16 r17 p1 works as a temperature dependent voltage source. The circuit is design as a mono audio amplifier. Here is the simple 2 x 30w audio amplifier with stk 465 power ic.

Low cost audio amplifier circuit we can build at your home the free pcb layout and the pcb silkscreen is given below the website you can easily download through the link.

This high power amplifier circuit with using transistor was designed to provide a manipulate in lieu of the otherwise useless to3 power transistors with the purpose of many hobbyists experience at home their throw out megabucks. On page 5 you ll find typical applications with several circuit diagrams. Kindly let me know what is the transistor no which you have used for the relay switch which you have used on your 300 watt amplifier circuit. Please help me to resolve this problem sir.