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“How to make a very simple single Valve Amplifier that also works at low voltage and is powered by 12V DC A valve amplifier or tube amplifier is a type of electronic device that uses vacuum tubes to increase the …
“A pocket, rechargeable battery PSU for powering small Cosplay-related projects (and not only) I build the Wearable Arc Reactor by Misha Tikh some times ago (it’s the one appears in this project cover picture) and I wanted a reliable …
“I always wanted a pet robot—one that runs around and takes care of itself. Roamer 2 wanders about, detecting objects using sonar and her front bumper. She mostly stays out of trouble. Her maximum run time is about 11 …
“Initially, set Roamer on a charging station. She will wander around, feed herself and rest at night. The next day, shell do it again. The charging station is merely a metal plate and a pole with metal foil attached to …
“I bought a couple of lithium ion 18650 batteries to power electrical projects. However, I needed something to conveniently charge and use the batteries safely. So, I used one of the inexpensive, widely available charger modules, threw in a few …
“DC to DC converters are quite popular among electronic enthusiasts and are widely used within the industry. There are three major types of non-isolated DC to DC converters: buck, boost, and buck-boost. In this article/video, I used there major …
“The circuit presented here is a 300W off-line power factor correction (PFC) boost converter providing a nominal regulated output voltage of 375V @ 0.8A of load current. The project accommodates an input voltage range of 85V AC to 265VAC and …
“A 3V to 20V portable rechargeable power supply from off-the-shelf components. Powered by a single 18650 battery. There are a number of Portable Power Supplies that makers have built around the cheap J5019 Adjustable Step Up module. Here are just …
“This uses a buck converter as a 5V Output to charge the battery(Li Po/Li-ion). And Boost converter for 3.7V battery to 5V USB output for devices needed 5 V. Similar to the Original system that uses Lead …
“Rainbows, natural phenomena that produce beautiful spectrums of coloured light in the sky, inspire myth and legend and art and give happiness to millions of people. Just as natural rainbows are created by how sunlight plays through water droplets in …