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
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