Here is the 200W MOSFET amplifier powered based on four piece of IRFP250N, they are very cheap and easy to find in the electronic market […]


Here the 35W power audio amplifier circuit based on LM391. Inductor L1 is constituted by 20 coils of wire, with thickness 0.9mm, round resistor R16. […]

This is the circuit diagram of 80W power audio amplifier based on power IC LM12. The circuit kit is sold at electronic part/component store, the […]

This is 68W power audio amplifier circuit which built based on single IC LM3886 from National Semiconductor. A LM3886 used for single channel operation. Dual […]

This 2x10W audio amplifier circuit power output will be 10 watt on each channel with 4 ohm speaker resistance. The supply voltage required for this […]

This is the circuit diagram of 35W Tube Power Amplifier with EL34. This tube amplifier designed in 1953 and worked from 1954 until 1989. If […]

This is 20 watt audio amplifier circuit design which use IC LM1875 as main component. This circuit is simple and very easy to built. For […]