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 … Read More
Category: High Voltage
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 … Read More
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 … Read More
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. … Read More
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 … Read More
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 … Read More
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 … Read More
Project Documentation: Tesla Coil Soft Start Safety Box
The Tesla coil Soft Start Safety Box project has been finished. The first version of my soft start box for 3 phased 400 VAC loads was just that, a soft … Read More
