| Thanks to its robustness, the legendary EL156 audio power pentode has found its way into many professional amplifier units. Its attraction d...
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| Noise has a serious impact on the environment as well as on human beings. Besides classical sound reduction techniques such as insulation, r...
| In the previous article we saw how we could implement a simple calculator using Delphi. This time we connect an external keypad to the seria...
| This version of Solitaire is played with an array of LEDs instead of pegs, with a microcontroller behind the scenes to check if you’re any g...
| Modern circuits make ever more extensive use of FPGAs. Special software is required when designing with these devices. One of the companies...
| The right crystal controlled frequency at the right time: With this DIP outline oscillator there’s no need to wait for a special crystal to...
| For true audio enthusiasts, nothing’s too far out when it comes to improving the sound quality of their hi-fi or surround-sound systems. Nat...
| This time we present yet another problem covering elementary circuit design. The schematic shows an opamp circuit supplying a rectangular vo...
| The High-End Preamp preamplifier published in the April & May 2004 issues naturally calls for a matching final amplifier in an identical hou...
| Even experienced electronics engineers occasionally find themselves confronted by the need to swap soldering iron for keyboard: not all proj...