DIY cheap Functiongenerator from Audio Amplifier

Описание: I builded a functiongenerator from a cheap car-audio-amplifier. Combined with a 12 VDC powersupply, a handy and a small DC_motor, you can do Meldes Experiment for only 30 euro each setup (handy and 12 VDC not included). I works GREAT!!! Next video I will compare my Frequency generator to a real frequency generator to see if it provides similar signal quality.