Over 50 videos and articles of high voltage, high power equipment that is taken apart and shown what is inside and how it works! X-RAY, UPS etc
This is a Kone Elevator control and power electronics panel dated around 1999-2000 according to stickers and test marks. It does not appear to have had a user interface, unless that was connected to the RS232 port. The front reveals a control board with a -12 VDC, GND and +12 VDC power supply at the
Kone elevator control/power electronics panel teardown Read More »
These are highly modular cable TV amplifiers, they are set up by using a wide range of different insert cards with different frequency ranges or options. These are 38 dB amplifiers in the range from 47 to 862 MHz. This particular amplifier is set up for 862 MHz, 42 channels and has a return path
Astro HVO-Vario G 38, teardown of a 862 MHz cable TV amplifier Read More »
Nokia Siemens Networks Flexi Multiradio BTS is a GSM/EDGE, WCDMA/(I-)HSPA, and LTE base station. Used in mobile telecommunication antenna networks. A network that you use daily on your cellphone. Part 1: System station and Part 2: Power amplifier Phased Antenna Array This is an obsolete Kathrein XPol 2-port single band panel antenna. The 2 ports means that
Nokia Siemens Networks Flexi WCDMA Teardown: Antenna (part 3 of 3) Read More »
Nokia Siemens Networks Flexi Multiradio BTS is a GSM/EDGE, WCDMA/(I-)HSPA, and LTE base station for use in mobile telecommunication antenna networks. A network that you use daily on your cellphone. Part 1: System station and Part 3: Antenna The following 12 minute video shows the teardown step by step with explanations, high resolution pictures of
Nokia Siemens Networks Flexi WCDMA Teardown: Power Amplifier (Part 2 of 3) Read More »
Nokia Siemens Networks Flexi Multiradio BTS is a GSM/EDGE, WCDMA/(I-)HSPA, and LTE base station for use in mobile telecommunication antenna networks. A network that you use daily on your cellphone. Part 2: Power amplifier and Part 3: Antenna In the above picture we see the first DSP board that was visible when the first shield was taken
Nokia Siemens Networks Flexi WCDMA Teardown: System Station (Part 1 of 3) Read More »
The Ericsson RBS 2216 is a 900 MHz GSM base station that would have been installed at the base of a antenna somewhere out in the field of mobile telecommunication networks. The enclosure contains one BFU-31 battery fuse and relay unit, three PSU-AC 27.2 VDC 1520 Watt power supplies, one DXU-31 central processing unit and
Ericsson RBS 2216 900 MHz base station teardown Read More »
I had the opportunity to take apart a GSM 900 MHZ power amplifier and band pass filter. Here I will show you how it is built and explain a little about the various mechanisms inside the filter.
GSM 900 MHz power amplifier teardown Read More »
I had the chance to take this Eaton Powerware 30 kVA / 27 kW (9355-30-N-7-2x9Ah) uninterrupted power supply apart to look for parts worth salvaging for future reuse in other projects. Looking up the type on the Eaton website we learn that it is a UPS using double conversion topology that provides isolation from all
Teardown – Eaton Powerware 30 kVA UPS Read More »