[sdiy] Amiga computer parts for Synth-DIY?

[Glen]

I've ended up with a computer board from some model of Amiga computer (I
have no idea which model, and I know nothing about an Amiga, in general). I
was wondering if any of the chips would be useful for sound generation in
some sort of Synth-DIY style project? 

Here are numbers from some of the large chips:

  MOS 8361R5
  MOS 8362R6
  MOS 8364R4
  MOS 8520A-1

  MC68010L8

I know that last number is a Motorola CPU, but I don't know anything about
the MOS chips. Does anyone know anything about the MOS numbered parts?
Would one of them be for sound generation by any chance? This board has a
yellow RCA jack labeled "NTSC". It also has a pair of RCA jacks that I
assume are for left and right audio outputs. (These are colored white and
red, respectively, and labeled "L" and "R".)

I'm trying to decide if there is anything I want to scavenge from this
board, or whether to simply toss the whole board away. I might want the MOS
chips, if I could get any data on them.

Thanks,
Glen