February 2022

Merlin Gerin Masterpact M16N1 Teardown

This is the complete destruction and teardown of the Masterpact M circuit breaker. It is normally used to protect and control low voltage distribution systems. Some of the M series primary features are: nominal current: 800 to 6300A AC. Breaking capacity from 40 to 150 kA rms. Voltage rating: up to 690 V. My previous […]

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Teardown of a Kappa CF15 CCD Camera From a Microscope

Teardown and on-the-fly analysis of the circuits found inside a Kappa CF15 CCD camera. I got the camera with my Nikon SMZ-2T stereo microscope, that I use for electronics repairs and component identification. The camera was defective and taking it apart really made for a pleasant surprise of complexity and a stuffed enclosure! You might

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Nokia Siemens 3G Flexi 2.1GHz to 2.4GHz 50W Amplifier Reverse Engineering (Part 3 of 3)

Circuit analysis, reverse-engineering and hacking of a Nokia Siemens Networks Flexi Multiradio base station FRGL amplifier. The user Da_Stier from highvoltageforum.net made a deep circuit analysis of the power amplifier, reverse-engineered how it works, built new printed circuit boards to make it run standalone and built a new enclosure for it. Shifting its output frequency

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