Elenco Electronics Snap Circuits Jr. Select Instruction Manual page 8

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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 resistor, lamp,
motor, integrated circuit, 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 your batteries.
given in the projects, incorrectly doing so may damage them. Elenco
responsible for parts damaged due to incorrect wiring.
Here are some important guidelines:
USE EYE PROTECTION WHEN ExPERIMENTING ON YOUR OWN.
include at least one component that will limit the current
ALWAYS
through a circuit, such as the speaker, lamp, ICs (which must
ALWAYS
be connected properly), motor, phototransistor, or resistor.
use the LED and switches in conjunction with other
components that will limit the current through them. Failure
ALWAYS
to do so will create a short circuit and/or damage those
parts.
disconnect your batteries immediately and check your
wiring if something appears to be getting hot.
ALWAYS
check your wiring before turning on a circuit.
connect ICs using configurations given in the projects or
ALWAYS
as per the connection descriptions for the parts.
ALWAYS
connect to an electrical outlet in your home in any way.
leave a circuit unattended when it is turned on.
NEVER
NEVER
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.
!
Warning to Snap Circuits
additional voltage sources from other sets, or you may
damage your parts. Contact ELENCO
questions or need guidance.
-7-
You
Only connect the ICs using configurations
is not
®
owners: Do not connect
®
if you have
®
Examples of SHORT CIRCUITS -
Placing a 3-snap wire directly
across the batteries is a
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!
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
: elenco@elenco.com.
Send your suggestions to ELENCO
®
ELENCO provides a circuit designer so that you can make your own
®
Snap Circuits drawings. This Microsoft
®
downloaded
www.snapcircuits.net/learning_center/kids_creation
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!
Word document can be
®
from:
- Never connect Snap Circuits
®