Troubleshooting a heating controller.
This is a faulty Honeywell heating controller sent by Dr Pipe, who's channel is linked below. It's exhibiting a common…
Inside a 58v e-scooter rear light
This E-scooter or E-bike was sent for our exploration by Jan in Germany. It's very unusual due to its huge…
Inside a fake un-trippable circuit breaker.
This is uninspiring. It's a circuit breaker that looks and feels just like the real thing, but has no fault…
120/240v to logic level optoisolator with schematic
This type of module is used in applications where you want a simple way to detect that a piece of…
Make your own dooby lamps – diy dubai lamps strobing alert
A test to see if ordinary LED lamps can be under-run like Dubai lamps to make them last longer with…
Dumpster-dive honeywell 2-port valve teardown
I succumbed to temptation and dumpster dived a skip outside a neighbours house to see if there was anything technical…
Teardown of a flush mounting feature light
A nice simple video showing a common eBay LED light that mounts flush to a wall and provides a splash…
Over/under voltage detector – with schematic
This is an odd device. It attaches to the side of a compatible circuit breaker, and connects to its outgoing…
Power saver plugs just got a bit darker
These power saving plugs have been around for a while. They possibly started life as a genuine filter plug for…
Repairing an industrial beacon with schematic
These beacons are commonly mounted on industrial equipment to indicate that a process has finished or a problem has occurred.…