Figure 4.3. There is a common line running the length of the diagram at the bottom. On the left there are two connection points labeled input. The bottom one connects to the common line. The top one connects to one end of a resistor labeled R sub B. The other end of R sub B connects to the base of a transistor represented by a standard schematic symbol for an NPN transistor. The emitter is connected to the common line. The collector connects to one end of an incandescent lamp. The other end of the lamp connects to the positive end of a battery labeled V sub CC. The negative end of the battery is connected to common. End verbal description.
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