Elenco Circuit Maker Sound Plus 200 - Manual (Page 6)

-5-
About Your Circuit Maker Sound Plus 200 Parts
RESISTORS
The photoresistor (RP) is a light-sensitive resistor, its
value changes from nearly infinite in total darkness to
about 1,000W when a bright light shines on it.
Resistors “resist” the flow of electricity and are used to
control or limit the current in a circuit. Circuit Maker Skill
Builder 125 includes 100W (R1), 1kW (R2), 5.1kW (R3),
and 100kW (R5) resistors (“k” symbolizes 1,000, so
R3 is really 5,100W). Materials like metal have very low
resistance (<1W), while materials like paper, plastic,
and air have near-infinite resistance. Increasing circuit
resistance reduces the flow of electricity.
Resistors (R1, R2, R3, & R5)
(Part designs are subject to change without notice).
BASE GRID
The blue snap wires
are wires used to
connect components.
They are used to transport
electricity and do not affect
circuit performance. They come in
different lengths to allow orderly
arrangement of connections on the base grid.
The red and black
jumper wires make
flexible connections
for times when using
the snap wires would be difficult.
They also are used to make
connections off the base grid.
Wires transport electricity just like pipes are used to
transport water. The colorful plastic coating protects
them and prevents electricity from getting in or out.
BATTERY HOLDER
The base grid is a platform for mounting parts and
wires. It functions like the printed circuit boards used
in most electronic products, or like how the walls are
used for mounting the electrical wiring in your home.
SNAP WIRES & JUMPER WIRES
The batteries (B3) produce an electrical voltage using
a chemical reaction. This “voltage” can be thought of
as electrical pressure, pushing electricity through a
circuit just like a pump pushes water through pipes.
This voltage is much lower and much safer than that
used in your house wiring. Using more batteries
increases the “pressure”, therefore, more electricity
flows.
Battery Holder (B3)
SLIDE & PRESS SWITCHES
The slide and press switches (S1 & S2) connect
(pressed or “ON”) or disconnect (not pressed or
“OFF”) the wires in a circuit. When ON they have no
effect on circuit performance. Switches turn on
electricity just like a faucet turns on water from a pipe.
Slide & Press Switches (S1 & S2)
The adjustable resistor (RV) is
a 50kW resistor but with
a center tap that can
be adjusted between
200W and 50kW.
Adjustable
Resistor (RV)
Photoresistor (RP)
CM-200_Manual_031914.qxp_CM-200_Manual_031914 4/2/14 12:04 PM Page 6