Teardown

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

Nokia Siemens Flexi BTS Base Station Teardown: Circuit Analysis (Part 2 of 2)

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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 […]

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Nokia Siemens Flexi BTS base station teardown: Power amplifier (part 1 of 2)

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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

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Eaton PowerWare 20 kVA UPS teardown

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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

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hameg 8122

Hameg 8122 Universal Counter – teardown, repair and test

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The Hameg 8122 Universal Counter is a programable counter / timer that has 3 inputs. Channel A and B from DC-150 MHz at 300 Vp-p and channel C from DC-1.6 GHz at 5 Vp-p. If you like to see other repair or teardown videos, check out this complete list! I accidentally broke a knob off

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15000$ (1990’s) Sony 3CCD Analogue color camera giveaway! (shipping costs apply)

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As a part of Dave from eevblog gave me the opportunity to reach a larger audience through the guest videos, I hoped that I found a new owner for this Sony 3CCD camera and that it would bring something good to another electronics hobbyist. Unfortunately I did not find anyone back then, so I will

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Teardown of a Eaton PowerWare 60kVA UPS system

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This is the teardown of a large 2x Eaton PowerWare 60kVA UPS system, first is the teardown video and below are some pictures and a little description of the components. For many more UPS teardown videos, check out the complete list. Here is a picture of a single Eaton PowerWare 60kVA system installed with battery

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Huawei RRU3908 base station circuit analysis (part 2 of 2)

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The Huawei RRU3908 is an outdoor Radio Base Station with one to four carriers and one to six sectors at 20/40 Watt RF output power per carrier. Other teardowns of radio equipment can be found here. Discussion of the teardown and analysis can be found here: https://highvoltageforum.net/index.php?topic=423.0 Central Processing Units Network communication is handled by

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Huawei RRU3908 Base Station Teardown (Part 1 of 2)

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The Huawei RRU3908 is an outdoor Radio Base Station with one to four carriers and one to six sectors at 20/40 Watt RF output power per carrier. Part 1 is the teardown itself with a walkthrough of different design highlights. Part 2 is coming online in the following 1-2 weeks. Part 2 is a complete

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