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Dev tools · July 2, 2014

SevenFortyFun, a transistor level op amp kit

SevenFortyFun, a transistor level op amp kit. Contribute to OpenAnalog/SevenFortyFun development by creating an account on GitHub.

SevenFortyFun, a transistor level op amp kit launched on July 2, 2014 with 45 votes and more than 90% of that year's launches. The site was still online in September 2026, 12 years on.

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In plain words

SevenFortyFun is a transistor-level operational amplifier kit hosted on GitHub. It is designed for electronics enthusiasts and developers who want to understand how op amps work at the component level. The kit allows users to build and study the fundamental circuit design of operational amplifiers by assembling individual transistors and supporting components, making it suitable for educational purposes and hands-on learning in analog electronics.

written from the facts on this page · September 2026

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