Complete car amp in a project stk4131 amp solid-II solid KA3525A DC-DC converter (SG3525) is located in the Filter section based on the bass opampli also tl074 DC-DC converter, the primary windings of the transformer circuit used; 2×6 2x... Electronics Projects, Car Amplifier Circuit with STK4131-II "audio amplifier circuits, dc dc converter circuit, ic amplifier, power electronic projects, sg3525 circuit, " Date 2019/08/04