Author Archives: Mads Barnkob

About Mads Barnkob

Electrician, experimenter and amateur scientist with experience in industry automation, programming and all kinds of high voltage generating electronics.

Ericsson Radio Base Station RBS3202 teardown

The RBS 3202 macro is an indoor Radio Base Station with one to four carriers and one to  six sectors at 20/40 Watt RF output power per carrier. All the boards that I have comes from the middle row in … Continue reading

Posted in Teardown | Tagged , , , , , , | Leave a comment

5kJ capacitor bank, 1.5kJ BANG test at end!

For now all details during development and testing can be found on the forum thread: https://highvoltageforum.net/index.php?topic=25.0 35 capacitors in series, each 450VDC/1000uF, for a 48 uF bank with a voltage rating of 14000VDC, making it able to store roughly 5kJ.

Posted in High voltage | Tagged , , , , | Leave a comment

To all electronic enthusiasts!

I kindly ask you all, that you carefully consider and think about all the websites you have used to learn about electronics, all the forums you have trawled through for information and the vast amount of videos on youtube that … Continue reading

Posted in News | Leave a comment

Nokia Siemens Networks Flexi WCDMA teardown: integrated Doherty amplifier (part 5)

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. Teardown of a NXP BLD6G22L-150 integrated Doherty amplifier from a … Continue reading

Posted in Teardown | Tagged , , , , | Leave a comment

Nokia Siemens Networks Flexi WCDMA teardown: Power amplifier (part 4)

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, Part 2: Power Amplifier and Part … Continue reading

Posted in Teardown | Tagged , , , , | Leave a comment

Kone elevator 45 kW motor drive teardown

This is a Kone KM997160 variable frequency motor drive that is developed and used for elevators.  Kone has a long history of their own motor drives that came in more or less atypical enclosures compared to other variable frequency drives. … Continue reading

Posted in Teardown | Tagged , , , , | Leave a comment

Kaizer DRSSTC IV – a high impedance primary circuit experiment

A new article has been added that describes the thoughts, design, construction and test of a very high impedance primary circuit QCW DRSSTC, where the voltage ramp is coming straight from half wave rectified mains supply and a mains synced … Continue reading

Posted in Tesla Coils | Tagged , , | Leave a comment

A new dedicated high voltage forum!

Hello everyone! The comment sections on my website have grown long with questions, advices and solutions. So I have expanded the site with a brand new forum, on a dedicated domain. We are a group of seasoned high voltage and … Continue reading

Posted in Electronics, High voltage, News, Tesla Coils | Tagged , , | Leave a comment

Teardown video of HP SureStore DLT 818 tape backup station

The HP SureStore E DLT Autoloader 818 is a cost-effective high-performance tape storage solution. This system comes equipped with a DLT8000 drive, which transfers data at up to 12 MB per second (compressed), allowing servers to be backed up or … Continue reading

Posted in Teardown | Tagged | Leave a comment

Mysterious failure of a Siemens mini circuit breaker C6A (5SY41)

From one day to another this mini circuit breaker stopped working, I had been using it wrongly as a on/off switch and was wondering if there was a mechanism inside to disable it after too many on/off switches, as MCBs … Continue reading

Posted in Electronics, Teardown | Tagged , , , | 2 Comments