Function Generator

This circuit named function generator, where wave yielded is sine wave, triangular wave and square wave. Function generator yields frequency 20Hz to 200KHz and has maximum amplitude value equal to 8V ( Pk-Pk ) for square wave and triangular wave 6V ( Pk-Pk) and sine wave equal to 4V ( Pk-Pk). a principle from function this generator is at IC 8038 yielding waving square wave which is internal, which with frequency arranged by C1 - C4 and potenhometer 10K. For switches shape applied to choose waveform which in wishing. From IC 8038 is then output in strengthening by IC LF351 for in strengthening its current so that in yielding output which in expecting.