So, I have successfully made a mono TDA2030 amplifier using a single-power-supply which worked flawlessly without any noise. But when I tried to design a stereo circuit with 2 TDA 2030 ICs, both of the speakers are having very high noise . Here is the circuit I have tried.
Please note that the both TDA 2030 circuits given above, are connected to a 12-0 volt DC (Non center tapped Transformer with full bridge rectifier) not 12-0-12.
So, where did I make a mistake? Please point me the mistake with proper schematic and markings also please describe the issue.
Thanks for your precious time...