This photograph was printed in the book "A Solid State of Progress" published by Fairchild Semiconductor in 1969 to mark the 10th anniversary of the first planar transistor. It was accompanied by the caption "1959 The first planar transistor - A teardrop device which marked the beginning of an industry revolution." A caption on the rear of the page describes the next device in the book - an NPN radio frequency amplifier used in TV tuners.
