jumper wires so that you have easier access to
power and ground. Then you can plug in your 9V
battery snap, red wire to a positive rail and blue to
a negative rail.
2. BUILD YOUR CIRCUIT
Now you’ll follow the schematic diagram to
assemble your circuit. Ultimately it should look
something like Figure
L
, but yours might be
arranged slightly differently. It’s important to
know that the diagram is not a representation of
how the circuit looks, but how it is connected. The
size of your breadboard and your comfort with
electronics can be factors in how you assemble
a circuit. I like to print the diagram out and cross
out the lines as I connect them.
I’ll usually start with the power and ground
pins, 8, 4, and 1 (Figure
H
). Then connect pin 3
from the first chip to pin 2 on the second (Figure
J
). Here I also connected the first chip’s pin 2 to
its pin 7, and the second chip’s pin 6 to its pin 7
(Figure
K
).
Then, I’ll connect all the capacitors (Figure
L
),
then all of the resistors, then anything else like
the speaker. It doesn’t really matter what order,
some people connect the pins in numerical order,
but having any kind of system can help you make
G
H
I
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