Dos And Don'ts Of Building Circuits - Elenco Electronics SC3DMEG Instruction Manual

DOs and DON'Ts of Building Circuits

After building the circuits given in this booklet, you may wish to experiment on your
own. Use the projects in this booklet as a guide, as many important design concepts
are introduced throughout them. Every circuit will include a power source (the
batteries), a resistance (which might be a motor, melody IC, or LED (which has an
internal protection resistor), etc.), and wiring paths between them and back.
must be careful not to create "short circuits" (very low-resistance paths across the
batteries, see examples below) as this will damage components and/or quickly drain
Elenco is not responsible for parts damaged due to incorrect
your batteries.
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wiring.
Here are some important guidelines:
ALWAYS
USE EYE PROTECTION WHEN ExPERIMENTING ON YOUR OWN.
ALWAYS
include at least one component that will limit the current through a
circuit, such as a motor, melody IC, or an LED (which has an internal
protection resistor).
ALWAYS
use switches in conjunction with other components that will limit the
current through them. Failure to do so will create a short circuit
and/or damage those parts.
ALWAYS
disconnect your batteries immediately and check your wiring if
something appears to be getting hot.
ALWAYS
check your wiring before turning on a circuit.
NEVER
connect to an electrical outlet in your home in any way.
NEVER
leave a circuit unattended when it is turned on.
NEVER
try to turn the shaft of the orange motor (M9) by hand or with tools, as
this may break it.
For all of the projects given in this book, the parts may be arranged in different
ways without changing the circuit. For example, the order of parts connected in
series or in parallel does not matter — what matters is how combinations of
these sub-circuits are arranged together.
3D Construction: Motors or other parts that produce motion (which you may
have from other snap Circuits sets) should only be mounted overhead or on
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walls with great care, as the vibrations they produce could cause them to fall.
The circuits in this set have been checked with the parts shown in them.
Warning to Snap Circuits
!
additional voltage sources from other sets, or you may
damage your parts. Contact ELENCO
or need guidance.
owners:
Do not connect
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if you have questions
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Examples of SHORT CIRCUITS -
Placing a 3-snap wire directly
across the batteries is a
You SHORT CIRCUIT.
!
NEVER
DO!
When the slide switch (S1) is turned on, this large circuit has a SHORT
CIRCUIT path (as shown by the arrows). The short circuit prevents any
other portions of the circuit from ever working.
!
NEVER
DO!
You are encouraged to tell us about new programs and circuits you create.
If they are unique, we will post them with your name and state on our
website at: www.snapcircuits.net/learning_center/kids_creation.
Send your suggestions to ELENCO
ELENCO provides a circuit designer so that you can make your own Snap
®
Circuits drawings. This Microsoft
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from: www.snapcircuits.net/learning_center/kids_creation or through
the www.snapcircuits.net website.
WARNING: SHOCK HAZARD
to the electrical outlets in your home in any way!
NEVER DO THESE!!!
!
NEVER
DO!
This is also a
SHORT CIRCUIT.
!
NEVER
DO!
: elenco@elenco.com.
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Word document can be downloaded
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- Never connect Snap Circuits
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