1. Parts we need in the project.

2. Solder the parts on the board and solder.

3. Test and adjust VR.

4. Finished and test it with audio.

Product lists:

Transistors:

• Q1, Q2, Q3, Q9 - BC546 - 4 pcs.  http://bit.ly/2FpTGNV

• Q4, Q6 - BD140 or MJE15035 or MJE350- 2 pcs.  http://bit.ly/2HC9qPC

• Q5 - BD139 or MJE15034 or MJE340- 1 pc. http://bit.ly/2F6QENs

• Q7 - MJL4302 / MJL21193 / MJW1302/ 2SC5200 - 1 pc. http://bit.ly/2FiPlMV

• Q8 - MJL4281 / MJL21194 / MJW3281/2SA1943 - 1 pc. http://bit.ly/2O8mLR4

Resistors:

• R1, R3, R4 - 1k - 3 pcs. http://bit.ly/2XXF9R3

• R2, R8, R5 - 22k - 3 pcs. http://bit.ly/2soUICX

• R6, R7 - 560R - 2 pcs. http://bit.ly/2FurJo2

• R9, R10 - 3k3 - 1W - 2 pcs. http://bit.ly/2OVtmP3

• R11, R12 - 220R - 2 pcs. http://bit.ly/2YYRKUu

• R13, R14 - 0R33 / 5W - 2 pcs. http://bit.ly/2FvsUUr

• R15 - 10R / 2W - 1 pc. http://bit.ly/2GmIgeP

• R16 - 1k - 1 pc. http://bit.ly/2XXF9R3

Condensers:

• C1 - 4,7mF / 25V - 1 pc. (on C1 - 1mF non-polar / film board) http://bit.ly/2Cp86f0

• C2, C4, C6 - 100pF - 3 pcs. http://bit.ly/2WqdBlZ

• C3, C5 - 100mF / 50V - 2 pcs. http://bit.ly/2X6Kg4M

• C7, C10, C13-100n - 3 pcs. http://bit.ly/2QK6ph7

• C8, C9, C11, C12 - 470mF / 50V - 3 pcs. http://bit.ly/2V58Xck

• D1 - LED 5mm - 1 pc. http://bit.ly/2IkuH1s

• Fuse 3A + block for mounting on the board - 2 pcs.  http://bit.ly/2XdYc9g

More details, pls check the video on Youtube: