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Post-Soviet Tesla Coil Teardown and Test

Tesla Coil Teardown and test of a Post-Soviet era Tesla coil. Hardware and circuit analysis with a spark throwing test. For a discussion of teardown and hardware, come on over to HVF and join the fun 🙂 Tesla Coil Hardware …

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Cisco Cable TV Optical Node and RF Amplifier Teardown

Teardown of Cisco / Scientific Atlanta Cable TV optical node and drop amplifier. These are modern versions running on fiber networks. These small amplifiers are used in houses where it is not practical to use a receiving antenna to get …

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TIG & Stick Welder, Migatronic Pilot 1800 Teardown

A teardown of a Migatronic Pilot 1800, a combined TIG & stick welder. TIG is short for Tungsten Inert Gas and refers to the tip of the welding handle, which is made out of tungsten. A inert gas comes from …

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Radiometer Copenhagen OSG 42b Oscilloscope Repair, From The 1950’ish

The previous owner of this Danish vintage oscilloscope had tried to plug it in and the only result was smoke! I was asked if I wanted it for repair or it would be thrown out. The Radiometer Copenhagen OSG 42b …

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Old School PLC Drum/Sequencer Programming with Telemecanique TSX Nano PLC

Having fun with the Schneider Automation / Telemecanique TSX Nano PLC. Its DOS based PL7-07 program IDE features a neat DRUM programming block that is a merge of old school mechanical control technique merged into modern programming for industrial control. …

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Teardown of DLP Projectors With 15 Years Between Them

Test, teardown and comparison of two DLP projectors. The Vivitek WD755 is from around 2013 and the older InFocus is from around 1998. They are both based on the Texas Instruments DLP chipsets and the technology and space it takes …

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High Voltage Coffee Mugs Unboxing

Coffee is important! Mugs for drinking coffee out of, is important as well! High voltage mugs is just the thing for your desk at work, home or in the field. It is also a great way to support Kaizer Power …

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How To Varnish A Tesla Coil Secondary Coil

This video shows your the method, tools and best of all, a few tricks to get a good Tesla Coil secondary coil varnish job done! This is something everyone can do, from a cheap battery drill to a expensive servo/stepper …

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Where To Get “Free” TO-247 IGBTs and MOSFETs

A look at a box of IGBTs and MOSFETs that I have salvaged from household electronics like microwave ovens, induction stoves, solar inverters, welding machines, car and battery charges and other common high power electronics with switching inverters. The TO-247 …

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Lightnovo Raman Spectrometer Demonstration At Roskilde Festival 2022

At Roskilde Festival 2022 I met 3 Ukrainian startup company scientists from the company Lightnovo. They are based in Denmark, where they have all been working at DTU. They had their product MiniRaman Spectrometer with them, for demonstration of liquid …

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