Mic Amplifier

This scheme named microfon amplifier ( Mic Amplifier), with a real easy material and simple but result of its gratifying. At this scheme need to be paid attention for component C3 and C4, where valuable each of C3 = 100pF and C4 = 250uF/10V. All preventive reactors is suggested to applies ¼ watt can also with ½ watt with tolerance 1%. This amplifier works for impedance input 125 Kohm with its limit frequency value 20KHz and the Output 100 ohms.