| Audio notch filters are useful when an engineer needs to see low-level harmonic distortion that would otherwise be buried under a much large...
All items tagged with Circuits Circuit Design News and Circuits & Circuit Design (201)
€5 (FREE for Members)
| Professional audio systems often use fully differential signal chains — from inputs and outputs to ADCs, DACs, and filtering stages — to ach...
| A compact FM wireless microphone turns a simple electret capsule into a short-range transmitter tunable across the FM band. Built around two...
| A clever 1997 Elektor design shows how accurate RMS-to-DC conversion can be achieved using just two op-amps and a handful of components. Thi...
| The CoffeeCaller nRF52840 board is an open-hardware development platform built around Nordic Semiconductor’s nRF52840, with full KiCad desig...
| This simple inductance meter uses an ATmega328 and LM339 to measure coil values at low cost. The design provides a practical way to estimate...
| System check! Elektor wants to know: Are open-source tools catching up with the big players in PCB design? How does KiCad stack up against p...
| What happens when a classic Nixie clock design runs out of I/O? This GPS-synchronized Nixie clock project shows how smart component choices...
| Audio measurements are the focus of Elektor Lab Talk #45, where Brian Tristam Williams, Jens Nickel, and Alfred Rosenkränzer dug into distor...
| The KiCad 10 release brings Windows dark mode, design variants, new importers, and a graphical DRC rule editor to the open-source PCB design...