Major Brands TIP102-VP Darlington NPN Transistor, 100 Volt, 8 Amp, 3-Pin, TO-220 Amp B Rail, 9.28 mm H x 4.82 mm W x 10.28 mm L (Pack of 10): Amazon.com: Industrial & Scientific
Amazon.com: Phoncoo BC547+ BC557 Each 100pcs All 200pcs Bag BC547B BC557B NPN PNP Transistor TO-92 Power Triode Transistor Bag : Industrial & Scientific
Basic In Circuit Transistor Tester NPN/PNP 2 x LED [ Unassembled kit ] - - Amazon.com
Crystal Fire: The Invention of the Transistor and the Birth of the Information Age (Sloan Technology Series): Riordan, Michael, Hoddeson, Lillian: 9780393318517: Amazon.com: Books