Teleste AC2000, teardown of a 862 MHz cable TV amplifier
by This Teleste AC2000 is a cable TV amplifier that is configurable through different insert jumpers for setting up attenuation/equalization, diplex filters, return amplifier or a …
Year: 2016
Kone elevator control/power electronics panel teardown
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 …
SSTC and DRSSTC musical modulator
Since Martin from ctc-labs.de decided to close down his website, which was all written in German, I asked him for permission to translate and publish …
Kaizer DRSSTC III update #7 – Show and tell
While we had the box open for removing the real-time current control, as you can see in the previous post, I did a walk through …
CM600DU-24FA IGBT – Removal of RTC over-current protection
The real-time current control (RTC) that can found in some IGBT modules is a protection against short circuits in f.ex. motor drives where they could …
Kaizer DRSSTC III update #6 – First full power test after removing RTC
After cutting out the bonding wires to the RTC circuit of the CM600DU-24FA IGBT bricks, which we thought could be one of the reasons that we …
Astro HVO-Vario G 38, teardown of a 862 MHz cable TV amplifier
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 …
Finished project: Merlin Gerin PM700 power meter
Two days ago I conducted the first successful resistive load test of a 3 phase power meter that can measure voltage, current, power consumption, harmonic distortion …
Finished project: 3 phase 13A Lübcke variac
Yesterday I conducted the first successful resistive load test of a 3 phase 13 A variac stack that has been enhanced with safety and monitoring …
Winners of a DRSSTC UD2.1 board
Seven users entered the lottery for a board by leaving a comment with a email address and through a gentleman agreement subscribed to the various channels …
Win a DRSSTC UD2.1 board for just a like/subscribe
I got two spare DRSSTC driver boards and you now have the chance to one of them home. It is a Steve Ward UD2.1 board …
Nokia Siemens Networks Flexi WCDMA teardown: Antenna (part 3 of 3)
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 …
Nokia Siemens Networks Flexi WCDMA teardown: Power amplifier (part 2 of 3)
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 …
Nokia Siemens Networks Flexi WCDMA teardown: System station (part 1 of 3)
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 …
Ericsson RBS 2216 900 MHz base station teardown
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 …
GSM 900 MHz power amplifier teardown
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 …