File:Early Mullard small signal transistor packages.jpg

Summary
Description A Mullard OC200 and two OC45 transistors from the early 1960s. They show some of the variety of SO-2 packages used at this time. From the top, the OC200 is an early silicon PNP transistor in an aluminium can. Central is a black OC45 germanium transistor in a black-painted glass package. Bottom is an OC45 in a clear glass and blue putty package, with rubber sleeve. Date	9 June 2015 Source	Own work Author	Andy Dingley https://commons.wikimedia.org/wiki/File:Early_Mullard_small_signal_transistor_packages.jpg