The audio section is a highlight of the 305 collection. It includes:
The original designs were intended for through-hole component mounting on custom etched Printed Circuit Boards (PCBs). Modern builders can easily redesign these layouts using free Electronic Design Automation (EDA) software like KiCad or EasyEDA. You can retain the exact schematic architecture but utilize Surface Mount Devices (SMD) to drastically reduce the project's physical footprint. Conclusion elektor 305 circuits
Modern electronics rely heavily on programming (Arduino, PIC, ESP32). "305 Circuits" predates this revolution. Many of the logic circuits (counters, sequencers, light chasers) could be built today with a single $2 microcontroller and a few lines of code. Building the discrete logic version from the book is a great learning exercise, but it is often not the most efficient or cost-effective way to solve a problem today. The audio section is a highlight of the 305 collection
