Denis Healey found him ‘the sort of insubordinate intellectual I find most agreeable’ but he dealt brusquely with Margaret Thatcher Sir Kit McMahon, who has died aged 97, was an Australian ...

Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The stereo amplifier is the beating heart of any hi-fi separates system. You can have all the ...

Find out more about how we test. Naim’s original Nait XS was introduced in 2008. It was designed as a step up from the basic Nait integrated amp and offered improved sound and greater grunt from a ...

The laser is connected to the servo assembly and is engaged and powered by an Arduino pin via an NPN transistor. He also incorporated a potentiometer to adjust the servo calibration point.

The most recent installment of [Dino Segovis’] Hack a Week covers the construction of a simple NPN transistor audio preamp.Some time ago, he built a small audio amplifier using an LM386 which ...