| Elektor's new Expert Collection, The Complete Linear Audio Library, is a must-have for every audiophile passionate about audio engineering,...
| Elektor's new Expert Collection, The Complete Linear Audio Library, is a must-have for every audiophile passionate about audio engineering,...
| Here comes a (relatively) easy to build DC/DC converter for valve amplifiers using through-hole components (just one SO-8 IC) with galvanica...
| We can easily use a current transformer to make precise measurements of alternating currents. We implement a wide variety of readily-availab...
| It may not be top-end high-end, but at 38x56 mm, this inexpensive and discrete circuit is smaller than some integrated solutions of similar...
| Having built a battery-powered valve headphone amplifier I discovered that the battery was often fully drained due to forgetting to switch i...
| An audio amplifier can be part of the electronics lab too. This design for an audio test amplifier features three channels that can be used...
| Once again, the battery of the battery operated tube headphone amplifier was empty because Elektor author James Glyn forgot to switch it off...
| Having built a battery-powered valve headphone amplifier, I discovered that the battery was often fully drained due to forgetting to switch...
| While a PC’s ‘line’ input generally offers acceptable characteristics, ‘mic’ inputs typically have only mediocre noise and distortion levels...
| In my younger days I built what is known as an ‘0V2’ valve receiver. Fueled by nostalgia for the pre-transistor era I decided to build anoth...