ensure all circuit board pads and component leads are
clean (not a problem with this project because boards
and components are new)
ensure the soldering iron tip is at its working
temperature and is in contact simultaneously with both
surfaces to be soldered (the pad and the component)
let the contact zones heat before applying only
electronics grade rosin cored solder (usually 3-6
seconds will do)
apply the solder to the two surfaces (not the iron tip)
and only enough solder to coat both surfaces
ensure that the joint does not move after you remove
the soldering iron tip and until the solder has solidified
the resultant good solder joint should be shiny, in perfect
contact with pad and wire and often has a concave upwards
appearance
toroids and inductors you will wind and solder in this project
use enamel coated magnet wire. The enamel wire used is
designed to be stripped by a soldering iron at 750 deg F.
This makes it much easier to tin the wire before insertion
into the circuit board holes. The project provides 2 sizes of
magnetic wire #22 AWG (thickest), 24 AWG (thinnest).
Suggested Tools
12-25 watt electronics soldering iron, electronics grade
solder, iron stand and sponge
De-soldering braid and/or desoldering pump or bulb
fine needle nose pliers, small fine wire cutters, wire stripper
small screwdrivers including jewelers screwdrivers, small
file
multi-meter
LCR meter (used to measure inductance and capacitance)
Crimp tools for Molex pins and Power Pole Terminals
Included Speciality Tools
1/16 and 7/64 Hex Head tool
Component Installation
For each component, our word
“Install”
always means:
Pick the correct part to start with – in the assembly notes
that follow we often provide a part number only. You must
match this part number with the correct component using
the parts lists (Appendix A).
Insert the component into the correct PCB position. Refer to
the PCB component outline (silkscreen). Orient it correctly,
following the PC board outline. This is vital for active
components, electrolytic and tantalum capacitors and
diodes. Also, it is good practice to mount resistors and
capacitors in identical orientations (for resistors normally
read color code left
to right in same direction as the
silkscreen on the PC board). This makes component
checks easier.
Arrange the resistors on the table before you from left to
right with the lowest values on the left progressing to higher
values on the right. Use the multi-meter to confirm the
resistor values.
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