Here are some pictures of my new amp, it uses the national semiconductor lm3875 chipamp. It is the second amp i build and find that the bass response on this amp is not nearly as strong as the lm1875. Why is this? the schematic is the same as the brian gt ones, no z-network or snubber caps. The supply caps are 2200uf for each board and i am using a bridge rectifier and a 150VA torroid transformer that I modified slightly to get the proper supply voltages.
Anyway hope you enjoy the pictures. Oh yeah this amp cost nothing to build beside the shipping on the lm3875's, i had everything lying around already, and even borrowed from an old broken sony tuner (The speaker jacks).
Anyway hope you enjoy the pictures. Oh yeah this amp cost nothing to build beside the shipping on the lm3875's, i had everything lying around already, and even borrowed from an old broken sony tuner (The speaker jacks).