"Spring has sprung"... all year round, for many centuries! Here's how important that one simple device has become for ...

My 2012 Skoda Octavia 1.4 TSI has just failed its MoT as one coil spring has 'fractured or broken' and the other is an advisory as it is corroded. Should I get both replaced or is it okay to just ...

Rather than trying to eyeball the spacing of the coil as you wind the wire around the mandrel, this design does it for you. As seen in the video, springs made with this tool look very professional.

[Zach Armstrong] presents for your viewing pleasure a simple guide to building a solid-state Tesla coil. The design is based around a self-resonant setup using the UCC2742x gate driver IC ...