1. Hands draw the circuit symbols of NPN and PNP transistors. 2. Explain the three operation regions of BJT: Cutoff Region, Active Region and Saturation Region. 3. Read the datasheet of 2N2222 and draw the pin out. http://www.centralsemi.com/PDFs/products/2N2221A.PDF 4. Explain in detail the input and output characteristics of a transistor.