Author Topic: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)  (Read 16956 times)

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Offline madsbarnkob

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Hello All

Just wanted to tell you a little about my high voltage, Tesla coil and general electronics website. 8 years of projects and data :)

It contains schematics, pictures, instructions and videos of 10 Tesla coils of different topologies, a DRSSTC design guide on how to chose components for building such coils. Another 10 smaller high voltage related projects, 3 tube amplifiers, many online electronics calculators like IGBT gate drive, transistor base resistor, MMC calculator and single layer coils. Theory pages with data lists, file archive with a good collection of application notes. General electronics and everyday experiments.

Website and blog: http://www.kaizerpowerelectronics.dk

Youtube: https://www.youtube.com/channel/UCSukTlgTEWiL-sl0UeYeJvQ/
« Last Edit: June 21, 2019, 07:14:09 am by madsbarnkob »
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power and more :)
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Offline DutchGert

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #1 on: April 03, 2017, 09:53:58 am »
Read a few months ago some posts about Solid State Tesla Coils on your website, very good read  :-+

Would recommend it for everyone to check it out
 

Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #2 on: April 04, 2017, 08:41:48 am »
Read a few months ago some posts about Solid State Tesla Coils on your website, very good read  :-+

Would recommend it for everyone to check it out

Thank you very much :)
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Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #3 on: April 19, 2017, 07:26:03 pm »
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 interrupter is used to trigger at the right interval.

The article covers the fall pits and strange behaviour of Tesla coils driven in this manner.

The project is highly experimental and the results were not as satisfying as expected, but problems with switching transients was a much bigger issues than initially thought of.

Read it all, see all the pictures and view all the videos at: http://kaizerpowerelectronics.dk/tesla-coils/kaizer-drsstc-iv/
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Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #4 on: June 14, 2017, 08:56:45 pm »
I made a new channel trailer for my youtube channel, which is more action packed than the old one, what do you think?

New trailer:


Old trailer:
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Offline Cliff Matthews

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #5 on: June 15, 2017, 12:20:40 am »
It's better now, but since you asked, I'll put in my 2-cents... You look a little rigid and need to loosen-up a bit. Also, stop looking up to your right before cutting forward. Fasten your eyes and maybe experiment to see how a brief mischievous eye works for your style (you may not be comfortable with that so try what works for you - but be sure to hold the eyes till the first cut).

Since HV is kind of risky and exiting stuff, a continuity of background beat music is catchy (volume and edge should suite you not anyone else). Raise and lower background volume to not compete with voice-overs and effects. Since it's short, make sure cuts are fast with some light-flash cuts and definitely in-sync with the rhythm. Maybe some help here.

Lastly you may want to cut down, break-up or even lower the long spark sound at the beginning, since noisy intro's get old pretty quick when returning to the channel (but it could be just me the semi-retired schlager musik fan).
 

Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #6 on: June 15, 2017, 06:48:45 am »
Thank you for the feedback.

I know I am a little stiff in it, I think it comes from English being my 2nd language and maybe a little stage freight, handheld camera as I do not even have space for a tripod in the cramped lab :) So I spend too much brainpower on keeping camera still enough, to keep my head in the shot etc etc. I never make a script beforehand, I do retake some scenes, I often feel the big disadvantage of being alone to do both experiments and filming, its hard to do both really good.

I do try to be more happy, less dry in my speech and so on, but damn its hard when it gets technical :)

Problem with music and youtube is that they will almost instantly slam you with a copyright claim, so I just stopped using it, maybe once I build my sequencer/VCOs I can make my own, but it will hardly be any good. Even royalty free music / commercial free music does not go free of this.

I made that splash screen with spark sound as my trademark, as you have seen on many videos, lowering the sound and shortening it to 2 seconds will be tried in the future.
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Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #7 on: November 27, 2017, 10:16:14 am »
I did some more experiments and teardowns, I also made a new intro splash which is used in these two latest videos





I have been working on getting better audio (external active microphone on DSLR), unless its handheld smartphone recordings and lightning, but a 10 sq.m. lab that contains 9 sq.m stuff really makes things difficult, but I do not want to let that stop me from making videos :)
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Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #8 on: December 31, 2017, 07:00:15 am »
Happy new year to all the readers, followers, subscribers, liker's and users that has to do with reading, commenting and writing on www.kaizerpowerelectronics.dk or www.highvoltageforum.net

I have filmed a small new year special video for you all! See you all in 2018 for more high voltage exploration and experimentation!

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Offline Cliff Matthews

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #9 on: December 31, 2017, 01:40:12 pm »
Well done and happy new year to you and your family!
 

Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #10 on: June 07, 2018, 08:36:34 am »
I bought a house and that is why updates have been rare, as I went into deconstruction/construction mode. I have however made a few small videos along the way to show the progress of moving all the electronics and get settled in a new work shop/lab.

Before moving out


Moving out


The new place


Some kind of order is restored in the work shop
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Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #11 on: November 08, 2018, 08:00:03 pm »
There has also been a lot of teardown videos etc, you can find that on the channel

Seems that I forgot to post part 5 long ago, so here is both part 5 and part 6 :)





I am operational again!
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Offline johnlsenchak

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #12 on: November 11, 2018, 08:09:29 pm »
Glad  to see you here   !   

« Last Edit: November 14, 2018, 01:11:04 pm by johnlsenchak »
John Senchak "Daytona  Beach  Florida "
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Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #13 on: April 24, 2019, 06:51:06 am »
All MIDI files played can be found in this thread: https://highvoltageforum.net/index.php?topic=118.0

DRSSTC1 information: http://kaizerpowerelectronics.dk/tesla-coils/kaizer-drsstc-i/

Popcorn


Star Wars - Imperial Death March


Dave Brubeck - Take Five


Ghostbusters theme



The Buggles - Video killed the Radio Star



Awolnation - Sail

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Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #14 on: May 19, 2019, 09:28:11 am »
Part 1 and 2 of a little series on a 750W solar project I am currently testing/building.



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Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #15 on: June 04, 2019, 06:35:58 am »


A teardown of a ESAB Caddy 1500i TIG welder, a run down of the current paths in the system and I show which parts I kept.

Datasheet on the unit: https://www.esab.dk/dk/da/products/arc-welding-equipment/tig-equipment-cc/industrial-equipment/caddy-tig-1500i-2200i-ta34.cfm
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Offline madsbarnkob

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Re: Kaizer Power Electronics - www.kaizerpowerelectronics.dk
« Reply #16 on: June 12, 2019, 12:54:46 pm »


 In part 3 I test the setup with all 3 panels connected and look at the performance over the last 8 days.

It all consists of:

3x 250W solar panels

1x Victron SmartSolar 100|30 MPPT battery charger

2x Norbatt 12V 150Ah batteries

1x 750W 24VDC to 230VAC inverter

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #17 on: June 21, 2019, 07:14:38 am »
Teardown of the Siemens Polyphos 30 X-ray head which contains step-up transformers, voltage multipliers and a rotating plate x-ray tube and a lot of oil!

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #18 on: June 30, 2019, 05:07:43 pm »
Teardown of the Siemens Polyphos 30 collimator and image plate. Collimator had an interesting moving blinds design with a lot of gears, pulleys and strings. Image plate has a lead grid and some kind of sensor.

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #19 on: July 09, 2019, 05:08:38 pm »
Teardown of the Siemens Polyphos 30 X-ray systems control panel including computer, safety functions, HMI and high voltage inverter circuit.

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #20 on: July 17, 2019, 08:03:44 pm »
I found a old 3.5" floppy drive cleaning kit and tried it out on a defective computer/floppy drive/floppy that I had. It would constantly ruin "new" disks and leave them with few kb of useful space.

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #21 on: July 27, 2019, 02:23:41 pm »


A teardown of a Danfoss VLT6000 4kW VFD, a run down of the current paths in the system and I show which parts I find to have a value.

Datasheet on the unit: https://www.danfoss.com/en/products/ac-drives/dds/vlt-and-vacon-legacy-drives/vlt-6000/#tab-overview
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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #22 on: August 16, 2019, 06:07:11 pm »


A teardown of a ESAB Power TIG LTR200 welder, a run down of the current paths in the system and I show which parts I kept.
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power and more :)
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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #23 on: September 05, 2019, 06:38:16 pm »
Teardown of a Nokia Siemens Networks Flexi Multiradio base station. This have been in service as a 3 antenna system for mobile telecommunications.

GSM/EDGE, WCDMA/HSPA and LTE capable. 3x90 Watt output power.



Flexi RF Module Triple (FXxx)

The Flexi Multiradio Radio Frequency Module (FXxx) or RF Module, is a 3-branch multicarrier,multi-standard radio transceiver module. The module consists of three independent branches, capable of transmitting and receiving signals of multiple radio technologies concurrently:

    Up to 6 GSM carriers with 400 KHz minimum carrier separation
    Up to 4 WCDMA carriers with 4.6 MHz minimum carrier separation
    Multi-carrier LTE signal with 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, and 35 MHz carrier bandwidth
    Multi RAT operation with combination of GSM, WCDMA, and LTE

The RF Modules FXDA, FXDJ, FXEA, FXCA, and FXFA/ FXFB are referred to as 70W RF Module variants. RF Modules FXEB and FXDB are referred to as 90 W RF Module variants. Each branch consists of a transmitter and two receiver chains. FXxA and FXFB (70W) variants have front end software tunable filters (STuF). 90 W RF Module variants have fixed full band filters. FXxx is a 3U high module with an integrated, replaceable 3-fan assembly for module cooling. The supported functions are:

    Chaining up to three RF Modules with OBSAI RP3_01
    2-way receive diversity in the receiver chains
    Integrated antenna line supervision
    MHA, Antenna Hopping, EGPRS2, and VAMOS support
    Digital and control circuitry, optical interface, DC/DC power conversion, and other necessary functionalities
    Integrated DC line OVP, Class II rated to 5kA pulse (FXFB, FXDB/FXEB)
    Remote Electrical Tilt (RET) support (FXFB, FXDB/FXEB)

Flexi Multiradio BTS GSM/EDGE modules are equipped with an integrated air guide plate providing full thermal compliance without casings. This allows installation of the modules without casings in Flexi cabinets and enclosed 19″ racks. Casings and covers are recommended in standalone 19″ racks (no cabinet) for safety reasons. Casings are not part of the FXxx delivery package. If the configuration requires casings, Flexi BTS Module Casing (EMHA) kits must be ordered.

The Flexi Multiradio RF Module variants are:
Version    Description
FXDA     GSM 900 (E-GSM) 70W
FXDJ     GSM 900 J-Band (P-GSM for CDMA co-siting) 70W
FXEA     GSM 1800 70W
FXCA     GSM 850 70W
FXFA/FXFB GSM 1900 70W
FXDB     GSM 900 (E-GSM) 90W
FXEB     GSM 1800 90W
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Offline Cliff Matthews

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #24 on: September 05, 2019, 06:47:48 pm »
On the last 3 video's, I have to say the mug is a nice touch sir! (Now I have to pour me a coffee..)
 
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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #25 on: September 16, 2019, 07:32:48 pm »
I have news about my solar setup, summer is over and so is the solar setup :( In part 4 I take a look at the efficiency and look at the performance over the last 60 days.

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #26 on: September 26, 2019, 08:33:38 am »
Thank you Cliff, I also love my mug and the coffee inside of it, it is needed!  :=\

Also a new video :)



The high resolution pictures and circuit explanation in text are hosted on my website: http://kaizerpowerelectronics.dk/teardown/nokia-siemens-flexi-3x90w-fxeb-1800mhz-base-station-teardown-power-amplifier-part-2-of-2/
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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #27 on: September 30, 2019, 06:18:25 am »
The 1800W IH is now boxed up with all power supplies, water cooling, foot switch, current meter and insulated work coil.

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #28 on: October 03, 2019, 07:53:05 am »
Test with using regular mineral wool for house insulation, to insulated the work coil in order to achieve higher steel temperatures.



Here is another try, just with horizontal instead to contain some more heat, accidentally melted some plastic on the enclosure from that

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #29 on: October 07, 2019, 07:48:40 am »


I visited HI Tech & Industry Scandinavia 2019 in Herning, Denmark and while doing so I recorded clips of the most interesting robots, robotics, machines, vision, PLC and machine technology.

You can find booth exhibitions from Schneider Electric, Beckhoff, Flir, MakerBot, Wago, Rhode&Schwartz, Coherent and so on.
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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #30 on: October 16, 2019, 07:11:38 am »


I needed a 50A current meter for the 1800W induction heater ( https://highvoltageforum.net/index.php?topic=530.0 ), but had none with the proper scaling. I do however have a large box of 1mA blank scale meters, so I decided to do a video on the following topics:

- Learn how to calculate the shunt resistor for your analog panel meter
- Guesstimate the internal resistance of a unknown meter
- Design custom scales if you have a blank meter or want to use a meter for another purpose than its original.

Link to scale-o-matic: http://stiftsbogtrykkeriet.dk/~mcs/Scale.html
Link to Meter from Tonne software: http://www.tonnesoftware.com/meter.html
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power and more :)
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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #31 on: November 08, 2019, 01:37:35 pm »
The HP T-620 Thin Client is a powerful little machine, that with ease can be hacked into using a random 19VDC PSU and run Windows as any normal PC, easy and cheap PC!

This thin client was thrown out, without anything else than the box itself, no power supplies, no nothing.



The port and connector layout from the manual shows that the HP T-620 models needs a 19VDC power supply. A little searching showed that it was not as simple as just supplying it with 19VDC. HP has put in a few tricks to make a "smart laptop charger" so that you can only use their chargers.

The "smart laptop charger" restriction can be bypassed with a simple current limiting hack as per this little schematics. All credits for this hack goes to:  http://nerdipedia.com/wiki/tiki-index.php?page=Smart+laptop+charger
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Offline madsbarnkob

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Offline madsbarnkob

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Aethra CCD Webcam Teardown - From Back When Streaming Was Expensive!
« Reply #33 on: December 08, 2019, 12:36:33 pm »
This is a Aethra Colour CCD #Webcam that was part of a system made for remote #medical diagnose / consultation for patients in remote locations.

The system was mounted in a car to be mobile, so a driver could visit patients and make a call to the doctor do complete the consultation within the patients home. The system was driven by a #embedded PC with a complete circuit for the interface, audio/video and running all peripherals on a RS232 daisy chain. The whole setup used some kind of GSM link to transfer the video and audio signal, seemed to be a very expensive and complex setup.

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #34 on: December 16, 2019, 09:09:57 am »


Test and Teardown of a Julabo ED heating immersion circulator from a decommissioned laboratory.

JULABO immersion circulators for controlling temperature +20 to +150 °C in any bath tank up to 50 liters. Parts that are immersed in bath liquid are constructed of stainless steel or synthetic material. Common applications include controlling the temperature of samples, temperature testing of articles, materials testing, and evaluation, adjustment, and calibration or thermometers and thermal switches.
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Offline madsbarnkob

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Merry Christmas and a Happy New Year!
« Reply #35 on: December 23, 2019, 09:59:44 pm »
Merry Christmas and a Happy New Year!

How to fix a broken iphone, shoutout to Louis Rossmann :)

This years seasonal greetings is a bit of comedy.

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #36 on: January 03, 2020, 08:37:37 am »


A teardown of a Kjellberg CUTi 31 Plasma Cutter with a power rating of 10 kVA. Made for cutting in 25-30 mm steel.

Connecting voltage (V): 3x 400VAC
Connecting power (kVA) 10.4
Mains fuse, slow(A) 16
Open circuit voltage (V) 240
Cutting current (A) 20...70
Duty cycle 70A/35% or 50A/100%
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Offline Cliff Matthews

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #37 on: January 03, 2020, 03:03:50 pm »
I don't see that reed relay as lasting too long.. maybe when it got stuck they would kick the box to make it work for a while longer. I wonder if that isolation transfo would have reqired litz wire? Also, nice outro music - Cheers! and Happy New Year!
 

Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #38 on: January 11, 2020, 11:34:01 am »
Thank you Cliff and happy new year, my friend Mikas made the music for me, so I got some royalty free to use on youtube without loosing monitization :)

Review and test of a mini induction heater. At just 12V 10-15A you can have a small and effective induction heater for your work bench.

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Offline madsbarnkob

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DSO138, Not Even Once
« Reply #39 on: January 20, 2020, 10:21:31 am »
Before you buy a DSO138 or DSO150 from ebay, amazon, wish or aliexpress, it is important to understand what you are getting. The specifications are very loosely written and what looks good on paper is useless in practical use. Here I test the DSO138 specified at 200 kHz, but in reality it is worthless above 20 kHz.

Buying the right oscilloscope is knowing your work area limits and where it might be in the future. I recommend that you read: 12 things to consider when choosing an oscilloscope: https://www.mouser.com/pdfdocs/Tektronix12_things_to_consider1.pdf

For the Nyquist applet to play with: http://195.134.76.37/applets/AppletNyquist/Appl_Nyquist2.html

« Last Edit: January 20, 2020, 07:17:46 pm by madsbarnkob »
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Offline madsbarnkob

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APC RS-1000 UPS Teardown
« Reply #40 on: January 29, 2020, 09:23:17 am »


A teardown of a APC RS-1000 UPS, a run down of the current paths in the system.

Data on the unit: https://www.apc.com/shop/us/en/products/Back-UPS-RS-1000VA/P-BR1000
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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #41 on: February 06, 2020, 12:43:48 pm »
This is the unboxing of a Anet A8 3D prrinter that was bought for my father to experiment with. Hopefully this will give some good help to make parts for electronics as part of the diy way of life :)

Following videos, in the future, will be about upgrades to the printer and test of its printer capabilities.

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #42 on: February 08, 2020, 10:32:57 am »
This is the first upgrade for the Anet A8 3D printer. A new powersupply from a HP server will be a fire-hazard reducing upgrade compared to the original undersized and over-specified power supply that came with the printer.

12V @ 62A is of cause much more powerful that needed for the printer, but this will keep the fan spinning at minimum speed. You do not want to be in the same room as a server power supply running at full current output with maximum fan spin. It is like a jet engine.

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #43 on: February 17, 2020, 10:19:22 am »


This is part 1 of my #diy #led flood light that is going to be used for high speed video filming with the FPS1000HD camera.

It is being built form 5x 50W LED COBs mounted on old Pentium4 CPU coolers.

I got no affiliation with these sellers, but it is where I bought my parts:
50W LED COB chips: https://www.ebay.co.uk/itm/50-W-Watt-LED-Chip-kaltweiss-24-40-mil-4500-Lm-6000K-kw-COB-Fluter-Flutlicht/162464897645?ssPageName=STRK%3AMEBIDX%3AIT
Reflector seller1: https://www.ebay.co.uk/itm/50W-70W-100W-120W-COB-Chip-LED-Lens-Fixed-Bracket-50mm-Reflector-Collimator/112785049513?ssPageName=STRK%3AMEBIDX%3AIT
Reflector seller2: https://www.ebay.co.uk/itm/50W-70W-100W-120W-50mm-Reflector-Collimator-COB-Chip-Fixed-Bracket-LED-Lens/263468105919?ssPageName=STRK%3AMEBIDX%3AIT
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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #44 on: February 23, 2020, 08:04:14 pm »
This is part 2 of my #diy #led flood light that is going to be used for high speed video filming with the FPS1000HD camera. It should be able to deliver around 20000-25000 Lumen.

Here I modify 3x HP server power supplies to deliver 36VDC, add fan controllers for the heat sinks and box it all up in a "very compact" box that can be handheld.

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #45 on: March 06, 2020, 10:03:28 am »


This is part 3 of my DIY LED flood light that is going to be used for high speed video filming with the FPS1000HD camera.

In this video the lux value is measured to 25000 at 1 square meter which corresponds to the given lumen value for the LED COBs.

The 36VDC power supply ripple is examined, the 50 Hz ripple is limited to around 1VDC and the high frequency 20-45 kHz switching noise is no apparent problem.

There is some flicker in the background when recording at 1000 and 4000 FPS, but once it gets up to 8000 and 20000 FPS, there is not enough light to even get the subject properly lit up.
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Offline madsbarnkob

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During corona isolation in Denmark, I was at home for 43 days in a row and I made som 30 videos in the time, but completely forgot about adding them here! :(

Here is the play list ( https://www.youtube.com/playlist?list=PLw4xMO1xCMSU6x8za6MvjrNwhi8Q-zA0Y ) with all the lockdown videos which is primarily about all kinds of different parts ranging from resistors, diodes, IGBTs to x-ray inverters and chain mails  :horse:

A few selected

Day 4


Day 7


Day 12


Day 18


Day 28


Day 36


Day 42

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Offline Cliff Matthews

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Just watching that chain mail episode made me tired.. does it really weigh that much? It must be like high gravity  :)
 

Offline madsbarnkob

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Just watching that chain mail episode made me tired.. does it really weigh that much? It must be like high gravity  :)

I prefer to put it on the ground and crawl into, I think it is homemade and made from a large gauge wire or one that was used in full contact medieval combat sports, would explain why it was ripped and thrown out. That is a pretty violent sport. I recorded some fights in a tournament back in 2016, crazy people coming out with concussions and broken arms/legs etc.

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Offline Cliff Matthews

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Yikes! Never would have guessed from your usual placid appearance, there was a blood-sport fellow lurking inside :o
 

Offline madsbarnkob

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Yikes! Never would have guessed from your usual placid appearance, there was a blood-sport fellow lurking inside :o

Only lurking from the side as well, I can handle high voltage and currents, but I have no desire to take a two-hand sword to my neck  :scared:

Also I finally found a cheap barebone bluetooth amplifier for my work shop that is actually work listening to.  :-BROKE

I wanted a small Bluetooth amplifier for my work shop and bought some cheap bare-board versions from Ebay. This TDA7498 design is over-advertised, but not as bad as other cheap bluetooth amplifiers from ebay.

Test, frequency response and THD+n measurements show how good it compares to the promised performance of the TDA7498 datasheet.

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600 Watt GEL Battery Charger Teardown - Signet Systems HB600-24B
« Reply #51 on: May 23, 2020, 10:46:19 am »


Teardown of a Signet Systems HB600-24B, 600 Watt GEL Battery Charger. Also known as Genie battery charger, Skyjack or JLG. It is a OEM battery charger from Signet Systems that is sold for others brands to sell under their own name.

Specifications:
IN: 9 AMP / 100-240 V
OUT: 19 AMP / 24V
600 WATT

Alternate Part Number:
GENIE /SKYJACK/JLG
SIGNET SYSTEMS 128537
GENIE HB600-24B
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Offline madsbarnkob

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In a celebration of reaching 10,000 subscribers on Youtube, I blew up some pieces of wire with my 2500uF / 2kV Maxwell energy discharge capacitor storing 4kJ of energy.

I also started a new dedicated slow motion video channel, please subscribe if you like to see more non-electronics videos recorded at high speeds: https://www.youtube.com/channel/UCB2qu77PCr5i9zcs0sOhp4w/
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Offline Cliff Matthews

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Congrats sir! I don't know who is updating our resources list these days, but I will check around to see what's up.
I have 8 of these Hicon 6800uF @ 250v but stringing all them in series for 2 KJ is too scary for me!
 

Offline RobertaKab

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Оочень хороший препарат, побочек вообще небыло
 
 
+что +за препарат дазатиниб
 

Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #55 on: June 05, 2020, 09:21:00 am »
Teardown of a Nokia Siemens Networks Flexi Multiradio base station. This have been in service as a 3 antenna system for mobile telecommunications. GSM/EDGE, WCDMA/HSPA and LTE capable. 3x70 Watt output power.

All high resolution pictures will be published with part 2



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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #56 on: June 07, 2020, 09:28:12 pm »


A couple of Eurasian blue tit (Cyanistes caeruleus) nested outside my work shop in one of our many bird boxes, put up to attract birds to our garden. A good 3 or 4 weeks went on with day in-and-out feeding of the young before the left the nest a week ago.

Teardowns on the inside of the workshop, new life on the outside :)

See all 5x 1000 FPS video clips from these recordings on my Slow Motion Videos channel: https://www.youtube.com/channel/UCB2qu77PCr5i9zcs0sOhp4w and please do consider subscribing to it as well.
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Offline madsbarnkob

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Doom 2 - Readme, on a Musical Tesla Coil
« Reply #57 on: June 16, 2020, 01:58:07 pm »
Doom 2 - Readme, on a Musical Tesla Coil

Played on my own DRSSTC2 Tesla Coil: http://kaizerpowerelectronics.dk/tesla-coils/kaizer-drsstc-ii/
Learn how to build your own DRSSTC to play music: http://kaizerpowerelectronics.dk/tesla-coils/drsstc-design-guide/

MIDI/Music interrupters you can build yourself:
4 channel polyphonic MIDI: https://highvoltageforum.net/index.php?topic=1020.0
1 channel compact/simple USB MIDI: https://highvoltageforum.net/index.php?topic=1117.0
1 channel analog audio: http://kaizerpowerelectronics.dk/tesla-coils/musical-sstcdrsstc-interrupter/

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #58 on: June 18, 2020, 06:44:43 pm »
Star Wars - Imperial Death March

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100$ Thermal Camera With 32x32 Pixel. HTi HT-02D Unboxing And Test
« Reply #59 on: June 27, 2020, 11:53:41 am »
There is a huge difference from the very cheap 8x8 pixel thermal cameras, to the 32x32 and up to the 160x120++. The price seems to quadruple with the pixel count. In this video I am testing the HTi HT02D Thermal camera that I was able to get at 100$ on offer. This is not a paid/non-paid advertisement, my own money, test and conclusion.

Best bet to find these at a decent price is to run through ebay and send off a lot of "make offer" of 100$ on the 150-200$ auctions. But is it worth it? Lets find out!



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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #60 on: July 04, 2020, 11:53:42 am »
I came by a discarded full size Dell PowerEdge M1000E server rack. Full SAN, 2 large blade servers, 4 or 6 backbone switches, all power supplies and fans. This is a system that is about 8-10 years old and had a new price of around 1000000 DKR (166666 $US).
It was all unloaded in a big mess into a container and I only had time/space to take a blade server, all power supplies and fans with me. Hard disks all go to destruction and backbone switches and the M1000E cabinet itself is too big and clumsy to have any real value in the work shop.

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https://lbry.tv/@KaizerPowerElectronics:9
« Reply #61 on: July 09, 2020, 09:19:41 pm »
In the light of the Jordan Pier youtube channel being deleted/closed down without warning, with cryptic message from youtube and it got wide attention from Dave at EEVBlog, Clive at bigclivedotcom and originally from Shango066, I would like to remind you that I am uploading all my videos at LBRY as well. Please consider signing up on LBRY and subscribing there as well.

https://lbry.tv/@KaizerPowerElectronics:9

[attachimg=1]
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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #62 on: July 11, 2020, 11:31:07 am »
A guide on how to make the, HP DPS-800GB Rev. A, server power supply run outside of its server enclosure.



A simple bridge between pin 31 and 34 is required and it is important to NOT drill holes through the GND and +12VDC output pads, this will risk short-circuiting the output as its a 4-layer PCB.
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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #63 on: July 25, 2020, 08:52:22 am »
This is 9! 12V/7A server fans built into a fan cluster with handles! It is time to wreck some havoc and play with fire and smoke!



I did not realize just how much fire was sucked through the fans until after I saw the photage. As seen in the pictures on the forum link there was some bad damage to the fan blade and wiring. It actually short circuited the DC rails from the fence melting through the insulation. It is also very good at cleaning the work shop floor.

Discussion of the fan cluster project with pictures: https://highvoltageforum.net/index.php?topic=1170.0

Dell PowerEdge M1000E Blade Server Teardown: I came by a discarded full size Dell PowerEdge M1000E server rack. Full SAN, 2 large blade servers, 4 or 6 backbone switches, all power supplies and fans. This is a system that is about 8-10 years old and had a new price of around 1000000 DKR (166666 $US).
It was all unloaded in a big mess into a container and I only had time/space to take a blade server, all power supplies and fans with me. Hard disks all go to destruction and backbone switches and the M1000E cabinet itself is too big and clumsy to have any real value in the work shop.

Discussion of the teardown: https://highvoltageforum.net/index.php?topic=1151.0
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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #64 on: August 07, 2020, 06:56:23 pm »


Played on my own DRSSTC2 Tesla Coil: http://kaizerpowerelectronics.dk/tesla-coils/kaizer-drsstc-ii/
Learn how to build your own DRSSTC to play music: http://kaizerpowerelectronics.dk/tesla-coils/drsstc-design-guide/

MIDI/Music interrupters you can build yourself:
4 channel polyphonic MIDI: https://highvoltageforum.net/index.php?topic=1020.0
1 channel compact/simple USB MIDI: https://highvoltageforum.net/index.php?topic=1117.0
1 channel analog audio: http://kaizerpowerelectronics.dk/tesla-coils/musical-sstcdrsstc-interrupter/
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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #65 on: August 12, 2020, 08:31:14 pm »
The old rotten and leaking workshop wall and door appeared to be installed on top of an even older rotted wall. It was time to do it properly, I broke everything down and built a new wall with fiber cement, insulation and some proper wood panels on the inside.

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Offline madsbarnkob

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Re: KPE - www.kaizerpowerelectronics.dk (see latest post for new videoes)
« Reply #66 on: September 06, 2020, 06:37:36 pm »
A guide on how to make the, EMC2 API4SG10 (Dell# 071-000-482) , server power supply run outside of its server enclosure. A simple bridge between control pins next to the 230VAC GND pins is required.



Schematic for the modification: [attachimg=1]
http://kaizerpowerelectronics.dk/electronics/server-psu-hack-emc2-api4sg10-12vdc-300w-from-a-dell-poweredge-m1000e/

Addtional information on where it came from is available in the server teardown video, follow the link *Dell PowerEdge M1000E Blade Server Teardown*
I came by a discarded full size Dell PowerEdge M1000E server rack. Full SAN, 2 large blade servers, 4 or 6 backbone switches, all power supplies and fans. This is a system that is about 8-10 years old and had a new price of around 1000000 DKR (166666 $US).
It was all unloaded in a big mess into a container and I only had time/space to take a blade server, all power supplies and fans with me. Hard disks all go to destruction and backbone switches and the M1000E cabinet itself is too big and clumsy to have any real value in the work shop.

Discussion of the teardown: https://highvoltageforum.net/index.php?topic=1151.0
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Offline madsbarnkob

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New channel trailer is out!
« Reply #67 on: September 20, 2020, 08:09:36 am »
New channel trailer is out!

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