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3.
From the component side, place one stripped end of the wire into the L1A
terminal. Bend it on the solder side to retain it, but don’t solder it yet. Route it
around the output capacitor as shown in Figure 15.
4.
Wind 6 turns of wire, closely spaced, so it looks like Figure 16. When you get
to the end of the coil, fold the end across the existing turns, toward the L1B
hole.
5.
Pull the end of the wire through the L1B hole and solder it on the back of the
board.
6.
Solder the L1A side of the inductor to the PCB.
7.
There will be about 5” of wire that you won’t use at this step. Save it, as we’ll
use some of it shortly.
Figure 15-Starting to wind the output inductor
Figure 16-finishing step for the output inductor
Install T8 and T9
T8 and T9 are driver transistors, each with its own heatsink. Prepare the transistors with
thermal compound before attaching them to a heatsink. Please refer to Figure 17.
Place a small dab of thermal compound on the metal tab side of the transistor.
Spread the dab into a thin film.