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Circuit analysis of a Nokia Siemens Networks Flexi Multiradio base station FRGL amplifier. This have been in service as a 3 antenna system for mobile telecommunications. GSM/EDGE and WCDMA/HSPA capable. The FRGL amplifier has 2x50 Watt output power at a carrier frequency of 2.1GHz.

Circuit analysis, reverse-engineering and hacking of a Nokia Siemens Networks Flexi Multiradio base station FRGL amplifier. The user Da_Stier from 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 band from 2.1 GHz to 2.4 GHz, for us in HAM radio experiments.

Documentation, board files, datasheets and Discussion of reverse-engineering:

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

This is a Merlin Gerin Masterpact M16N1 Circuit Breaker rated at 1600A/690VAC. This is the complete destruction and teardown of the Masterpact M circuit breaker. For all schematics, pictures and how I got it to work, can be found described in details in the discussion thread linked below.

Pictures and additional information:
Discussion of teardown:

This is a complete teardown of a Hitachi L7450 HPLC Diode-Array-Detector. HPLC is short for High Performance Liquid Chromatography. The DAD uses UV light to detect a color spectrum through a liquid flow cell into a linear detector.

Pictures and additional information:


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