Elektor 305 - Circuits

Despite its age, "305 Circuits" remains highly sought after in the retro-tech community.

: Rain sensors and water tank overflow alarms. elektor 305 circuits

First, let's clear up a common confusion. "Elektor 305" is not a single schematic. It refers to a specific compendium: — a series of themed project books published by Elektor in the late 1980s and early 1990s. Despite its age, "305 Circuits" remains highly sought

The parts used in this book are largely through-hole. You can salvage 90% of the components from old VCRs, computer power supplies, or even cheap Amazon component assortments. Despite its age

: Many of the analog sensor circuits in the book can be easily modified to output a 0–5V signal, making them perfect analog inputs for an Arduino or ESP32. Conclusion