Teardown, schematic and analysis of a single transistor PSU.
Well that's me destroyed ALL the power supplies that came with the meteor lights now, and now I do actually understand the feedback technique. It took a very careful and slow unwinding of the last transformer to note the direction of the windings to......
PSU transistor unit schematic and mounting
This is the power output stage of a PSU that I'm working on. It's going to handle up to 24V and 7.3A, wich is very close to the max rating of the transformer....
Teardown and schematic of LED strobe beacon.
Yet another fantastic Chinese industrial component. These beacons are often attached to factory machines to get attention when something goes wrong. Traditionally they would have either had xenon strobes or tungsten lamps in them, but the use of LE......
Teardown and schematic of 60 LED grow lamp.
Quite a neat little LED lamp with a standard capacitive dropper circuit and 60 standard 5mm LEDs in series. There were 15 blue and 45 red arranged in quite a pleasing random manner. So pleasing that I got the urge to modify it into a much lower pow......
Driverless 50W LED teardown and schematic.
A complete teardown of one of the new driverless LEDs. It's interesting that these devices seem to be based on the chips used in some LED filament lamps. They seem to share a common array of LEDs, but have a number of driver chips bussed in paralle......
HOTweezers (wire stripper) teardown and schematic
partial teardown of HOTweezers and schematic...
USB plasma ball teardown and schematic.
I bought this from Banggood, but it's quite a common device on eBay if you search for USB plasma ball. Once you see that it radiates a very high voltage gradient at high frequency you may choose not to plug it into, or place it near anything expensi......
Kinect 2.0 and PSU teardown
This is the teardown I promised in my last teardown video of the Xbox One Power Supply, and Kinect 2.0.Shoutout to "Peanut Gallery": https://www.youtube.com/channel/UCe4e......
Wacom Teardown and Schematic - scanlime:013
This time we're looking at the protocol that powers Wacom’s wireless pens, and taking a deep look into the logic circuits (74xx!) that make them run.If you missed the last video, check it out for the big picture on how graphics tablets work: https://......
Teardown and analysis of a tungsten night light.
A very common night light in the UK, that uses a 7W tungsten night light lamp being run half wave to give a dimmer output and long life. The circuit uses a thyristor to switch the lamp on when an LDR senses that it's dark. The thyristor is amazingl......
Transistor / Component Tester Teardown and Review
A review, test, and teardown of a cheap transistor / component tester purchased on eBay.* This video has left-channel audio only, sorry about that! *Update! Germanium transistors tested in this new video:https://youtu.be/tMSmudpVjGEeBay item:LCD ESR......
Flowing light USB cable teardown and schematic.
Someone mentioned that Techmoan had featured this on his channel and they wondered how it worked. Here's a link to Techmoan's video:-https://www.youtube.com/watch?v=PCZTS...So let's take one to bits.Here's an ebay.com search link, but note that many......
30kW energy saver plug teardown and schematic.
Another of these quack power saving devices that claim to reduce your electricity bill. This one also does at least allude to being a transient suppressor of sorts. The case is actually very nice, although the UK style plug pins are fractionally sh......
Total teardown and schematic of the Poundland GU10 LED lamp.
I decided to fully reverse engineer the Poundland GU10 lamp because it has an interesting LED driver that is based on discrete transistors.I'm not 100% sure of the purpose of what appears to be a charge pump with a zener as a threshold arrangement.......
Teardown - Vintage Transistor Tester
A custom built transistor tester I purchased for $5.Any idea when it was made?...
USB soldering iron test and teardown with schematic.
When I bought this I was very sceptical that anything powered from a USB port could actually produce enough heat to solder. But here it is, tested and reverse engineered for your viewing pleasure.Note the warning about using it from plug-in USB char......
Non-delicate teardown and schematic of 2A LED power supply.
This video started as a simple look inside some generic 12V 2A power supplies intended for LED strips.But then........