Pictures as promised: https://highvoltageforum.net/index.php?topic=523.0 Teaser for the upcoming teardown videos of the Siemens Polyphos 30 x-ray machine, complete with control panel, inverter, collimator, detector/grid plate and x-ray head. Never miss a post, subscribe to email notifications on kaizerpowerelectronics.dk, find it in the menu right side: http://kaizerpowerelectronics.dk/
The RRU3928 is an outdoor remote radio unit. It processes baseband and RF signal data. With the Software Defined Radio (SDR)technology, the RRU3928 supports the dual-mode operation of any two modes of GSM, UMTS, and LTE through software configuration modification. RRU3928 has a dual-transmitter and dual-receiver structure, which supports higher output power and carrier capacity. …
Huawei RRU3928 1800MHz radio base station teardown (part 1 of 2) Read More »
Circuit analysis of a Nokia Siemens Networks Flexi BTS base station. This have been in service as a 6 antenna GSM system for mobile telecommunications. GSM/EDGE, WCDMA/HSPA and LTE capable. 2×40 Watt output power. If you missed part 1, see it here: https://kaizerpowerelectronics.dk/teardown/nokia-siemens-flexi-bts-base-station-teardown-power-amplifier-part-1-of-2/ Filter Above picture shows the coaxial cavity band pass filter which in …
Nokia Siemens Flexi BTS Base Station Teardown: Circuit Analysis (Part 2 of 2) Read More »
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Here you get a short glimpse of the new space for the laboratory and the final setup. This is part 5 and 6 in a series of videos on moving out, moving in and setting up the new lab / workshop. If you missed part 1, 2, 3 or 4 of this series on moving …
Moving To A New Lab (Part 5 and 6) Tour And Finally Its Operational Read More »
Teardown of a Nokia Siemens Networks Flexi BTS base station. This have been in service as a 6 antenna GSM system for mobile telecommunications. Part 2 with circuit analysis of the Nokia Siemens BTS RF circuits can be found on this link. This base station amplifier is capable of GSM/EDGE, WCDMA/HSPA and LTE at 2×40 …
Nokia Siemens Flexi BTS base station teardown: Power amplifier (part 1 of 2) Read More »
Here is a little quick, dirty and early morning junk yard teardown of a 20 kVA Eaton PowerWare UPS system. I have earlier taken some of these systems apart and you can see the differences from there photo galleries:http://kaizerpowerelectronics.dk/tools/file-archive/?drawer=images*junk_yard_stuff*2016_03_22_-_Eaton_Powerware_20kVA_UPShttp://kaizerpowerelectronics.dk/tools/file-archive/?drawer=images*junk_yard_stuff*2016_03_22_-_Eaton_Powerware_30kVA_UPShttp://kaizerpowerelectronics.dk/tools/file-archive/?drawer=images*junk_yard_stuff*2016_09_23_-_Eaton_Powerware_20kVA_UPS Other UPS teardown videos:60 kVA Eaton UPS system http://kaizerpowerelectronics.dk/teardown/teardown-of-a-eaton-powerware-60kva-ups-system/30 kVA Eaton UPS system http://kaizerpowerelectronics.dk/teardown/teardown-video-of-eaton-powerware-30-kva-ups/2.2 kVA UPS …
Teardown of the GE AMX-II SCR based inverter controller, driver and bridge for a General Electric mobile x-ray unit. It is a 120V battery operated apparatus from 1979, which has a 60 Hz mains inverter and 500 Hz high voltage inverter. All analog controlled with completely custom made electronics. For more teardowns of x-ray equipment, …