I was given an Altec Lansing VS2121 powered speaker sytem that was going bad. And I wanted to recycle some of the parts out of it. What I found inside was quite interesting.
Here is what I found,
2 x lm324 quad op amp from st
2 x tfa9842j single chip 2 channel amp
and a whole bunch of passive through hole parts (caps, resistors) .
It is a very simple design. Now I have some decent op amps and a decent size transformer (120v to 15.3v 1.6A) with a nice particle board box.
Time to start thinking of what I can remake this into.