Building an ebay power filter kit with schematic .
This is a very common kit on eBay intended for use with audio amplifiers to filter out mains borne noise.…
New poundland head torch is actually really neat.
When I saw this I thought it was going to be the usual construction for these things, but it's got…
240v solar lead acid led head torch. with schematic.
This is by far the chunkiest head torch I've taken apart. While the concept of solar recharging while on your…
Fixing a faulty battery pir light that was draining the batteries fast.
I've come across this fault in the past. A battery operated device with seemingly good circuitry is draining its batteries…
How the brother label printers laminate the label.
It was time to get a new label printer, so I decided to get the popular Brother PTE300VP unit. This…