This easy to construct “Handy pen torch” electronic circuit and low component count, uses two power white LEDs for lighting. Low volt (4.8V dc) supply available from the built in rechargeable Ni-Cd ...

Any parent or guardian worried about keeping their children safe whilst their online, may be worth giving a new route more investigation, called Torch. Torch has been designed to provide a simple ...

Here is a tried and tested design of an ultra-simple emergency torch built around the inexpensive dc-dc converter chip MC34063. Beyond a handful of simple components, a lithium coin cell and a small ...