Elektor 305 Circuits: //top\\

The brilliance of the Elektor 300 series lies in its diversity. The editors aimed to provide something for everyone, regardless of skill level or specific interest. The projects are typically categorized to help readers find exactly what they need, ranging from simple utility gadgets to sophisticated measurement tools.

Before USB-C, you needed a linear supply. The book teaches you: Elektor 305 Circuits

Before one could build the circuits, one needed to test them. The book included schematics for function generators, frequency counters, and logic probes. These were expensive pieces of kit in the 1980s; building them from Elektor schematics saved professionals thousands of dollars. The brilliance of the Elektor 300 series lies

Found this useful? Share it with a friend who still owns a soldering station with a sponge, not a fancy automatic desoldering gun. Before USB-C, you needed a linear supply

The 305 Circuits book (published in the early 1980s, compiling articles primarily from 1980-1982) was a curated "best of" collection. It wasn't merely a reprint; it was an organized encyclopedia of solutions. The title was simple and pragmatic: it contained exactly 305 distinct circuits, ranging from simple logic gates to complex audio amplifiers.

This is the crown jewel of the collection. Using an LM723 (a classic voltage regulator IC) and a pass transistor, this design allows you to build a variable bench supply that rivals commercial units. The schematic for this supply is still referenced on electronics forums today as a "tried and true" project.