A teardown of a 19″ 1U server UPS, the APC Smart UPS 450 model SC450RMI1U. I give a quick run down of the current paths in the system and evaluation of the overall design. For many more UPS teardown articles and videos, I hope you will find these articles worth your time! Specifications for APC […]
APC Smart UPS 450 VA, for Server 19″ Rack 1U, Teardown Read More »
Technical walk-through and demonstration of spark generation from my first dual resonant Tesla coil. I finished this dual 811A vacuum tube Tesla Coil back in late 2008, which dates this back 15 years by now! At the time I finished this coil, my best camera at the time, could only record in 640×480 with horrible
811A Vacuum Tube Tesla Coil + 1000 FPS Slow Motion Sparks Read More »
I found a discarded ESAB TBH 140 welding machine in a scrap yard! It might be an older shielded metal arc welder, also known as SMAW or stick welder. But from what my father told me, these old ESAB machines are impossible to destroy. It got a good new home 🙂 I have also done
ESAB Bantam TBH 140 Welder Restoration Read More »
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 »
I bought two 750 mm long and 70 mm diameter plasma tubes from Barracuda Glass by Chris Burak. These lovely borosilicate glass tubes are filled with a mix of iodine, argon and krypton, for a bright blue glow. The Tesla coil used, is one of my first Tesla coils ever built. The Kaizer VTTC 1.
750 mm Plasma Tubes and Vacuum Tube Tesla Coil 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 »
Teardown of a ABB DCS401.0900 DC motor drive. It can output an insane 900A at variable voltages, for a maximum output power of 522 kW! A very modular design by ABB, that makes almost no difference on the 2- or 4-quadrant versions of this drive. You love motor drives, inverters, variable frequency drives and all
ABB DCS400 – 900A / 522kW DC Motor Drive Teardown Read More »
I found a complete Philips Medio 50 CP-H system consisting of 2 meter tall 19″ rack with computer, driver, inverter and high voltage tank. Dual X-ray tube head rated for 150 kV and a control desk. It was only possibly for me to take the control desk with me. No effort was done for the
Philips Medio 50 kW CP-H X-ray Control Desk Teardown Read More »