Manual

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Switch: You know what a switch is – you use
switches every day. When you slide (or flip) to the
proper position, the circuit will be completed,
allowing current to flow through. In the other position
a break is made, causing the circuit to be “off”. The
switch that we will be using is a double-pole, double-
throw switch. You will learn about that later on.
Key: The key is a simple switch—you press it and
electricity is allowed to flow through the circuit. When
you release it, the circuit is not complete because a
b
reak is caused in the circuit’s path. The key will be
used in most circuits often times in signaling circuits
(you can send Morse code this way as well as other
things).
Terminals: Two terminals will be used in some
projects (terminals 13 and 14). They will be used to
make connections to external devices such as an
earphone, antenna or earth ground connection,
special sensor circuits and so forth.
Wires: Wires will be used to make connections to
the terminals.
Your parts and spring terminals are mounted on the
colorful platform. You can see how the wires are
connected to the parts and their terminals if you look
under the platform.
YOUR FIRST PROJECT
A simple wiring sequence is listed for each project.
Connect the wires with appropriate length between
each grouping of terminals listed. When doing the
experiment use the shortest wire that possibly gets
the job done. New groupings will be separated by a
comma, connect the terminals in each group.
As an example, here is the project 1 wiring
sequence:
1-29, 2-30, 3-104-106, 4-28-124, 5-41-105, 27-88,
75-87-103-40, 115-42-119, 76-116, 121-22.
Connect a wire between 1 and 29, another wire
between 2 and 30, another between 3 and 104 and
then another wire between 104 and 106. Continue
until all connections are made.
Caution: The last connection in each wiring
sequence is an important power wire; this is
deliberate. It is important that you make this
connection your LAST connection. Damage can
occur if one part of the circuit is completed before
another. Therefore follow the wiring sequence
exactly.
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