Practical Electronics/Bipolar Transistors/PNP Transistor
PNP Transistor edit
A PNP transistor is made by joining one Negative Typed Semiconductor in between two Positive Typed Semiconductors.
The symbol for a PNP Transistor:
Transistor's Rectifier edit
A PNP Transistor only allows half of a negative cycle of a voltage or signal wave to pass and grounds any positive cycle of a voltage or signal wave.