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Building and mounting the LP filter.
Solder the surface mount capacitors.
There are several ways to solder the surface mount capacitor depending what tools you have. I will describe
how to do it with a normal soldering iron and solder wire.
First, apply some solder to one side of the pads that will hold the surface mount capacitor.
Do not place the SMD capacitor at this stage, only apply some small amount of solder tin to one side of the
pads.
Once you have applied some solder to one side off all the pads for C1, C2,C3 and C4, pick the two capacitors
with the highest value, they will be soldered on the inner most two pads (C2 and C3)
Remove them from the bag and the paper strip they come in. Only get the two capacitors with the highest
capacitance out at this time. Let the other two remain in their plastic bag to avoid getting them mixed up.
Pick up the first capacitor with a tweezer and hold it to the pad while re-heating the solder. This will solder the
capacitor on one side of the pads.
