Hello,
For my A level engineering project I am attempting to build a guitar amp. However I am experiencing a major problem which I cannot resolve. I have both halves of a TL072 op amp set up as simple non inverting amplifiers running off +/- 12V with a simple tone control between the two. This forms my preamp. When I put a low voltage sine wave into the input and connect an oscilloscope to the output it works fine, just as it should. But when I connect an 8ohm speaker to the output the oscilloscope shows a much lower voltage and hugely distorted waveform, and it sounds very distorted as well. Any help would be much appreciated.
Thanks
For my A level engineering project I am attempting to build a guitar amp. However I am experiencing a major problem which I cannot resolve. I have both halves of a TL072 op amp set up as simple non inverting amplifiers running off +/- 12V with a simple tone control between the two. This forms my preamp. When I put a low voltage sine wave into the input and connect an oscilloscope to the output it works fine, just as it should. But when I connect an 8ohm speaker to the output the oscilloscope shows a much lower voltage and hugely distorted waveform, and it sounds very distorted as well. Any help would be much appreciated.
Thanks