Yearly Archives: 2019

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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IBM ThinkPad A20p, from 2000. Vintage Computer Teardown.

Standard Features Intel Mobile Pentium III 700 or 750 MHz CPU ATI Rage Mobility 128 with 16MB 15.0″ TFT display with 1400×1050 resolution 128MB PC-100 memory standard (512MB max) 18 or 20GB HDD

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Teardown of Danfoss VLT6000 4kW Variable Frequency Drive

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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Floppiclene! A Electronics Cleaning Relic of the Past.

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. It also failed horribly!

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