3x400V Mains Supply Soft Start and Data Monitor

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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 […]

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Cisco Cable TV EGC GaN Segmentable Node A90201, RF Amplifier Teardown

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Teardown of Cisco Cable TV EGC GAN node and drop amplifier. Electronic Gain Control (EGC) technology and GaN (Gallium Nitride) monolithic microwave integrated circuits (MMICs}. These are modern versions running on fiber networks. These small amplifiers are used in houses where it is not practical to use a receiving antenna to get the signal from

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Scrap Yard IGBTs and MOSFETs from Solar Inverters, Welding Machines and Induction Cookers

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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

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[PAYOUT] Computer Gold Scrap Money WITHOUT Chemicals or Mechanical Processing (Part 2 of 2)

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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

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electronics gold

Computer Gold Scrap Money WITHOUT Chemicals or Mechanical Processing (Part 1 of 2)

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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

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10 kW Sirio 10000P Solar Inverter Teardown

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Teardown of a Sirio 10000P solar inverter designed in Italy and made in Taiwan. A extremely heavy and well built power house. Full of TO-264 sized IGBTs and a giant single PCB layout for the inverters. To watch more teardown videos with articles full of high resolution pictures, check out the complete list of equipment

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Washing Machine Motor Burnout and Controller Teardown

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I lost my washing machine to the flooding of the basement. I wanted to indulge in the famous Photonicinduction experiment of throwing a large rock into a running washing machine and let it dance for the internet to enjoy. It did not exactly go like that. The motor controller and driver is a Bitron Electrolux

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50 kW Sedecal SHF-530 X-ray High Voltage Generator Inverter Teardown

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This Sedecal SHF-330, with HF meaning High Frequency, was originally a 37.5 kW x-ray high voltage generator. It later received an upgrade, to a Sedecal SHF-530, which is a 50 kW 500mA x-ray high voltage generator. This x-ray generator comes in 3 different versions. Line powered drawing all power directly from mains, 20-50 kW. Capacitor

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