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Be very careful when soldering the FETs and
LED. They’re very sensitive to heat. You should
use some kind of heat sink (crocodile clip or
reverse action tweezers) on each leg as you
solder them. Keep exposure to heat to a
minimum (under 2 seconds).
You should solder the resistors and diode before
you add the jacks, as you’ll have no access to
those pads once the unit is fully assembled.
Keep your joints nice and neat (you always
should, surely...) so you don’t have any solder
blobs interfering with the underside of the jacks.
You can use a board-mounted DC socket, or
wire one up. If wiring, use the V and G pads.
The long pin of the wired socket is the positive.
SMALL OOPS! HACK REQUIRED
Of course, adding the battery spring to ground
the circuit to the enclosure is pure genius.
Forgetting to connect that spring to the ground
plane on the circuit board balances that out.
You need to run a wire from a ground point to
one of the spring legs. If you’re board mounting
the DC, use the spare G pad. If you’re wiring the
DC, use the pad marked in blue above.
Summary of Contents for Spluffer
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