File:1950's GE PNP Germanium Alloy Junction Transistors.jpg

Summary
Description English: 1950 GE PNP Transistors had the black round "top hat" case. Early models have pinched tops. Date	15 July 2012 Source	Own work (Original text: Part of my collection) Previously published: sites.google.com/site/johnengsdeadtechrescue/ Author	Engradio https://commons.wikimedia.org/wiki/File:1950%27s_GE_PNP_Germanium_Alloy_Junction_Transistors.jpg