Supercomputer light bulb build – with schematic
This project is definitely only suited to experimenters with suitable mains voltage experience, as it involves high voltages. It's the…
Luxury fake power saver plug with schematic
The power saver scam has a long history. In the past, travelling salesmen used to give a seemingly plausible demo…
Teardown of a big hepa air filter unit with schematic
I got a big floor-standing air filter unit so we could take it apart and see what's inside. These were…
Bud light vs sodastream – is it a good idea?
Another instalment in the carbonation series that seems to go either really well or really badly. In this case it…
Usb cold-cathode uvc/neon driver – with schematic
Quite a smart little module. It's a surface mount cold cathode driver intended for use with UVC/ozone sterilisation tubes. But…
Ebay trash usb charger 2023 – with schematic
Much better than the last similar looking unit, and this one is easily hackable to your chosen current by swapping…
Frosty jack’s vs water distiller – is it a good idea? no
It seemed like an interesting experiment to do. Bang a 2.5L bottle of 7.5% trash-cider through the water distiller to…
Stylish sansi pir light – with schematic
Sansi is the company that makes the unusual ceramic core LED lamps. Having been quite impressed by their lamps I…
Inside a german volkslicht the people’s light. – with schematic
The Volkslicht was presented as the people's light, where the marketers probably thought that the German people would embrace their…
Unusual, but accurate low voltage probe with schematic
A strange electrical probe from eBay, that may be aimed primarily at vehicle use, but probably has other applications. A…