1. Solder first all the SMD components.
Note C8 and R7.
2. Transformer T1 ferrites and the brass tubes. Smooth the inside edges of the tubes if needed.
3. Solder T1 tubes with the ferrite beads. Solder the pin header connectors.
4. Peel one end of the thinner PTFE wire
and solder the beginning of the wire.
5. Wind the turns into T1 by pushing the wire
four times thru both of the tubes.
6. Cut and peel the other end of the wire and solder the end point of the T1 winding
7. Transformer T2 ferrites and the brass tubes. Smooth the inside edges of the tubes if needed.
8. Solder the transformer T2 brass tubes with ferrites.
9. Peel one end of the thicker PTFE wire
and solder the beginning of the wire.
10. Wind the turns into T2 by pushing the wire four times thru both of the tubes.
11. Cut and peel the other end of the wire and solder the end point of the T2 winding
12. Solder RF choke L3 by inserting two soldered copper wires thru the ferrite bead.
13. Install the fan with the finger shield to the heatsink. (Finger shield missing in this picture)
14. Thermal grease
15. Apply thermal grease to the heatsink as shown in the picture
16. Smoothen the grease over the shown area.
17. Prepare the Q3 by folding the legs of the transistor as shown
18. Place the rear plate. Apply thermal grease and install Q3. Place the PCB spacer tubes.
19. Fix the PCB. Tighten the screws loosely and align the board, the rear plate and the heatsink.
20. Put the fan wires thru the rear plate and solder the fan wires.
21. Apply thermal grease to the final transistors.
22. Mount the final transistors Q1 and Q2. Tighten the screws loosely and align all.
23. Tighten alternately all the screws and solder Q1 and Q2 legs. Use large soldering tip
24. Check all the screws and solder Q3 legs. Solder the power resitors R5 and R6.
25. Cut and peel the red and black wires. Crimp and solder to the connector pins.
26. Snap in the power supply connector to the rear panel.
27. Snap the connector pins to the connector. Cut, peel and solder the wires to the PCB.
28. Completed amplifier module
29. Completed amplifier module
30. View of the fan cable