Author Archives: Mads Barnkob

About Mads Barnkob

Electrician, programmer, experimenter and amateur scientist with experience in industry automation, programming and all kinds of high voltage generating electronics. Administrator of www.kaizerpowerelectronics.dk and the high voltage community forum www.highvoltageforum.net

Analog Panel Meter Shunt Calculation and Custom Scale Design

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 Kyoritsu KM-66 1 mA blank scale meters, so I decided to … Continue reading

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Visiting The Expo: HI Tech & Industry Scandinavia 2019

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, … Continue reading

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Chinese 1800 Watt Induction Heater – Horizontal Oven Heat Insulation Test

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 … Continue reading

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Chinese 1800 Watt Induction Heater – Heat Insulation Test

Test with using regular mineral wool for house insulation, to insulated the work coil in order to achieve higher steel temperatures.

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Chinese 1800 Watt Induction Heater, Boxed Up With Server PSU + Test

The 1800W Induction Heater is now boxed up with all power supplies, water cooling, foot switch, current meter and insulated work coil. All information you could ever want to know about these 1800/2500 Watt Chinese induction heaters: https://highvoltageforum.net/index.php?topic=530.0

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Nokia Siemens Flexi 3x90W FXEB 1800MHz base station teardown: Power amplifier (part 2 of 2)

This Nokia Siemens Networks Multiradio BTS FXEB module is a GSM 1800 MHz 90W amplifier module capable of GSM/EDGE, WCDMA/HSPA and LTE. If you missed part 1, see it here: Nokia Siemens Flexi 3x90W FXEB 1800MHz base station teardown: Power … Continue reading

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750W Victron Solar Project – 60 Days Performance – Part 4

In part 4 I take a look at the efficiency and look at the performance over the last 60 days

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Nokia Siemens Flexi 3x90W FXEB 1800MHz base station teardown: Power amplifier (part 1 of 2)

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. 3×90 Watt output power. All high resolution pictures will be published with … Continue reading

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How To Make a Stencil For Spray Paint With Cheap Hand Tools

How to make a stencil template out of metal sheet, reusable and very sturdy. Can be used for spray or brushed on paint. No power tools, only cheap hand tools, a laser printer and clothes iron. I highly recommend using … Continue reading

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ESAB Power TIG 200 Welder Teardown

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.

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