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The eight terminal blocks shown in this figure will be used to connect

two wires each to various components in the circuit. The wires from

these terminal blocks go to the battery pack, the DB9 connector, the

on/off switch, tactile switches in the puppet, the speaker, and the poten-

tiometer, respectively.

2. Insert wires to connect the ICs and the terminal blocks to the ground
   bus and then insert a wire between the two ground buses to connect
   them to each other, as shown in Figure 7-6.

Fourteen shorter wires connect components to ground bus; the long

wire on the left connects the two ground buses.

3. Insert wires to connect the ICs and the terminal blocks for the battery
   pack and the three tactile switches (S1, S2, S3) to the +V bus, as shown
   in Figure 7-7.


4. Insert wires to connect the ICs; terminal blocks for the potentiometer
   (R8) and tactile switches (S1, S2, S3); and discrete components, as
   shown in Figure 7-8.


5. Insert discrete components on the breadboard, as shown in Figure 7-9.

When inserting electrolytic or tantalum capacitors, be sure to check the

schematic to see where to insert the longer, positive (+) lead. The com-

ponents shown in this figure, indicated by numbered callout, include

Figure 7-6:

Connect the

ICs and

terminal

blocks to

ground; then

connect the

ground

buses.

148 Part II: Sounding Off!