Home is where the smart is these days, and one of the easiest ways to give your house a brain boost is by upgrading the heating system. You could do that by buying an off-the-shelf thermostat from ...

Home is where the smart is these days, and one of the easiest ways to give your house a brain boost is by upgrading the heating system. You could do that by buying an off-the-shelf thermostat from ...

Halloween is coming and [Paulo] decided to make some flickering jack-o-lanterns by hijacking the flickering circuit of a cheap LED tea light to drive a much more powerful light! He has tons of old ...

The 2N3055 and 2N3053 transistors should be mounted on suitable heat sinks and the current sense resistor should be rated at 3 watts or more. Voltage regulation is controlled by 1/2 of a 1558 or 1458 ...

A very simple audio power amplifier circuit built with 741, 2N3053, 2N4037, 2N3055 and MJ2955 which deliver up to 50W on a 8Ω speaker. Use a 3A symmetric power supply for mono application and a 5A for ...