Step 1: PCB
What you need for made PCB:
Marker or nail polish
You can do on pcb with holes.
Step 2: Made PCB (etching)
Water, salt and copper sulphate (you can find DIY stores). Etching is approx. 8 hours if kept warm successful and faster (i use 100ml hot water,4 salt tea spoons, 2 tea spoons).
Copper sulphate 40%
Be careful with chemicals, after work wash your hands with soap and water.
Step 3: PCB
Clear PCB with aceton and made holes.
Step 4: PCB
1x TDA7560 (or TDA7386, TDA7384)
1x 10k ohm (brown, black, orange, gold)
1x 47k ohm (yellow, violet, orange, gold)
2x 0.1uf (code on caapacitor "104")
2x 1uf (code "105")
3x 0.47uf (code "...474...",)
2x 2200uf can be smaller (It operates without capacitor)
Step 5: AMP
Solder all electronic parts and test.
Maybe next time made new instructables, amplifier TDA7294 bridge 145watt.