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“Adapt your LED tea lights to run on “dead” batteries with this pretty holder! Earlier this year, I created a circuit board for the classic “Joule Thief” circuit, which allows you to run small projects off of nearly-dead batteries (including …

“Build a small circuit from salvaged components, to make an LED shine brightly from low-voltage sources. I feel a special connection to this circuit – whether you call it the “One-Volt LED” (named by Z. Kaparnik in 1999), or the “Vampire …

“Wikipedia says : A joule thief is a minimalist self-oscillating voltage booster that is small, low-cost, and easy to build, typically used for driving small loads. This circuit is also known by other names such as blocking oscillator, joule ringer, vampire …

“A joule thief takes a low DC voltage and boosts it up to a higher voltage. You can even take a battery that other devices will consider to be drained and get a bit more of the energy out of …

“in this tutorial, lets build a joule thief circuit”

“Hacking the “I can solder” pin with a fancy steampunkish neon bulb lamp and a high voltage joule thief During the last Chaos Communication Camp during summer 2019 I got an I can solder pin. So I walked directly into …

“YX8018 is a 4-pin integrated circuit for driving solar powered garden LED lights and is found on many cheap garden lights. You can buy 10x YX8018 ICs on AliExpress for around $1. You will need the following parts to build …

“What is a Godot Machine? It is part of the human experience that we can find ourselves in a state of waiting for something that might eventually happen after a long time of waiting, or not at all. The Godot …

“This is a simple inverter circuit or driver provides power for different types of LEDs (eg- white LED, blue LED, UV LED, but also any other LED) from 1.2 Volt or 3.7 Volt single cell or Lithium-ion battery …

“The battery life of a Joule Thief circuit can be drastically increased if the device is switched off during daylight. This Instructable shows an extremely simple way of doing it.”