- Welding Listing
 
| 
 1  | 
 Comment  | 
 Designator  | 
 Quantity  | 
| 
 2  | 
 10UF Electrolytic Capacitor  | 
 C1  | 
 1  | 
| 
 3  | 
 105  | 
 C2  | 
 1  | 
| 
 4  | 
 3mm Red LED  | 
 D1  | 
 1  | 
| 
 5  | 
 3mm Blue LED  | 
 D2  | 
 1  | 
| 
 6  | 
 10cm Wire  | 
 J2, J3  | 
 1  | 
| 
 7  | 
 Coil  | 
 J1  | 
 1  | 
| 
 8  | 
 Power Interface  | 
 P1  | 
 1  | 
| 
 9  | 
 80NF70  | 
 Q1  | 
 1  | 
| 
 10  | 
 BD243  | 
 Q2  | 
 1  | 
| 
 11  | 
 Cooling Fin  | 
 
  | 
 2  | 
| 
 12  | 
 10K  | 
 R1, R4  | 
 2  | 
| 
 13  | 
 2K  | 
 R3, R5  | 
 2  | 
| 
 14  | 
 Phone Jack  | 
 Music  | 
 1  | 
| 
 15  | 
 3.5 Audio Cable  | 
 
  | 
 
  | 
| 
 16  | 
 M3*12 Copper Pillar  | 
 
  | 
 4  | 
| 
 17  | 
 M3*6 Screw  | 
 
  | 
 10  | 
| 
 18  | 
 PCB Board  | 
 
  | 
 
  | 
2. Welding Components
a.

b. Wire Welding
 
c. Fold

d. Coil Welding


e. Coil fixation

          
                 
               
                     
                     
  
  
  
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