Rgb dimmer teardown and schematic no microcontroller
This must be the first time I've ever referred to the humble 555 as a microcontroller. To be fair, it…
Philips streetlight ledgine fault and repair
This is an unusual one. It's the very hefty LED module out of a streetlight, that has failed prematurely. The…
Exploring a high voltage power supply
From the same range as another unit I looked at recently, this one has an open PCB power supply with…
Redistilling posh laphroaig whisky
An experiment conducted for my brother Ralfy to do an analysis on in one of his own videos. I don't…
Vintage rcd/gfci teardown with story weird sensing system
This old Wylex RCD /GFCI is the simplest I have ever seen. The sensing core is especially unusual. It's worth…
Inside a puremate ioniser it’s an ozone generator
The circuitry in this unit is strange. It almost appears to be for diagnostic purposes, or maybe to add an…
New led lamp twist reverse engineered from a picture
Just when you thought they couldn't make an LED lamp simpler than the common linear regulator type, they come out…
Chizhevsky ion generator psu full build
The original concept of air ionisers is attributed to a Russian scientist called Alexander Chizhevsky. I thought I'd honour him…
Led neon rocket teardown
This is a very simple LED based neon-style ornament. The frame will accommodate standard 6mm wide LED neon strip, so…
Distilling red wine to see what happens
In an ongoing experiment involving putting common drinks through a water distiller, it's the turn of red wine. If you…