The most enduringly successful chip in electronics history was created by one man working in a back-alley storefront. His name was Hans Camenzind, the chip was the 555 timer, and this year marks its 50th anniversary. It has outlasted all competitors, is still being manufactured in basically the same design, and has sold billions worldwide. [&]

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https://makezine.com/article/maker-news/homage-to-a-handmade-chip-the-worlds-most-popular-integrated-circuit-turns-50/