Check out a Jameco JE25 breadboard from your lab TA. You will be using this
board throughout the semester. Obtain a piece of masking tape and affix it to
the bottom of your board. Write your name (and partner's name) on the tape.
Write down the identification number of your board for reference. When you are
finished with your board at the end of each lab, return your board to its
sequential location in the cabinet.
After you have checked out your breadboard, examine it closely with your partner.
Your JE25 breadboard has two terminal strips, four bus strips, and
three binding posts as shown in Figure 
. Each bus strip has two rows of
contacts. Each of the two rows of contacts on the bus strips are a node. That is,
every contact along a row on a bus strip is connected together, inside the breadboard.
Bus strips are used primarily for power supply connections but are also used for
any node requiring a large number of connections. Each terminal strip has 60 rows
and 5 columns of contacts on each side of the center gap. Each row of 5 contacts
is a node. You will build your circuits on the terminal strips by inserting the
leads of circuit components into the contact receptacles and making connections with
22 AWG (American Wire Gauge) wire. There are wire cutter/strippers and a spool of
wire in the lab. You will be using the red and black binding posts for power supply
connections. Hence, it is a good idea to wire them to a bus strip.
Figure: Jameco JE25 Solderless Breadboard