My SB100 transistor on a breadboard experimental setup
Toronto. In the early days of transistors, the tiny marvels couldn’t operate very far beyond audio frequencies. In the late 1950s, Philco managed to create a transistor usable at radio freqencies. The SB100 transistor, as it was named, was offered to experimenters.
Shown here is a breadboard assembly acting as a radio receiver with a CK722 transistor as an audio amplifier also on a breadboard.
While the photo at left is a snapshot, a branch of photography focussed on capturing images of technical products – for advertisements, catalogues, manuals, etc.
