General electronics projects. Reverse engineering of industrial electronics. Smaller projects that you can make at home or for school.
The Dell N870P power supply origins from the redundant PSU for the Dell Poweredge R710 / T610 rack servers. This article and video shows how to make it run standalone. Pictures of the Dell N870P / NPS-885AB unit and its specifications. The list of hacked server power supplies gets longer and longer. Use my guides […]
Server PSU Hack – Dell N870P / NPS-885AB. 12V 71A 870W Read More »
April, 9 years old and Alfred, 5 years old assemble and solder a LED blinking Christmas tree. Kids love to build stuff and electronics should be no exception to them! They build a 3D blinking LED Christmas tree. It only uses LEDs, resistors, capacitors and transistors, to blink the LEDs in 3 groups. The LEDs
Electronics For Kids – LED Christmas Tree Read More »
Construction of a 3 phase 400 VAC at 32A mains supply soft start circuit with safety features and a data monitor. Pictures and schematics: https://kaizerpowerelectronics.dk/general-electronics/3-phase-32a-400vac-soft-start-power-supply/ All parts like enclosure, current transducers, voltage step down, contactors and wiring is reused from my 3 phase 13 A Lübcke variac build, that unfortunately had one of the auto
3x400V Mains Supply Soft Start and Data Monitor Read More »
A look at a bag of IGBTs and MOSFETs that I quickly salvaged from industrial electronics. Found in induction cookers, solar inverters, welding machines, car and battery charges. It can also be other common high power electronics with switching inverters. Discussion of salvaging IGBTs/MOSFETs: https://highvoltageforum.net/index.php?topic=2117.0 These TO-247 IGBTs can be used in a DRSSTC Tesla
Old electronics and expensive RF parts often contain a large amount of gold and other precious materials. For an introduction to how and where all this was collected and see what different parts it was, check out Computer Gold Scrap Money WITHOUT Chemicals or Mechanical Processing (Part 1 of 2) Prediction before shipping goods off
Old electronics and expensive RF parts often contain a large amount of gold and other precious materials. I have seen a lot of Computer Gold Scrap recovery videos on youtube. I assume that you have seen the same. Some are handling everything correct, but truth is, with the dangerous and hazardous nature of the dust
Computer Gold Scrap Money WITHOUT Chemicals or Mechanical Processing (Part 1 of 2) Read More »
Comparison of my DIY Arduino Uno DHT22 temperature and humidity IOT sensor with ESP8266 WiFi module. Up against the commercial Airthings View Plus sensor hub which can do radon, temperature, humidity, pressure, VOC, PM and CO2. This video is also a complete walkthrough of how I built the Arduino solution and how to setup the
Home Automation: DIY Arduino vs. Airthings View Plus Read More »
