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There...feel better? OK, let's go. Just follow these steps, measuring the wire length
carefully if you want to succeed the on first shot.
1. Cut a 21 1/2" length of 16 AWG solid wire from the output inductors wound
around the old Dynaco output capacitors.
2. Strip back 3/8" of insulation from both ends of the wire. Be careful not to nick the
conductors.
3. From the component side, place one stripped end of the wire into the L1A
terminal. Route it around the output capacitor as shown in (see Figure 9) Solder
the wire into the L1A hole.
4. Wind 5 turns of wire, closely spaced, so it looks like Figure 10. 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.
Solder the LM3886 into the Board
This is the last step in stuffing the circuit board. By now, you are pretty good at soldering.
Your skill will help you with this step. Just follow the instructions calmly and carefully,
and you'll do just fine.
1. You'll start with one small bit of mechanical assembly as shown in Figure 11.
Use two #6-3/8" Phillips head screws (they have captive lock-washers) to fasten
two brackets to the solder side of the amplifier PC board. Watch the bracket
orientation, and don't install any more fasteners at this time!
2. With the brackets attached to the PC board, use the template in Figure 12 to check
the LM3886 mounting height. If your printer has printed to the correct scale, the
Figure 9-Starting to wind the output inductor
Figure 10-finishing step for the output inductor
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Troubleshooting
