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 was repaired and saved! Radiometer is a Danish company from 1935, started by the engineers […]
Radiometer Copenhagen OSG 42b Oscilloscope Repair, From The 1950’ish Read More »
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. Modern 20 years ago. Perfect for making a simple sequence control or a drum machine!
Old School PLC Drum/Sequencer Programming with Telemecanique TSX Nano PLC Read More »
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 up, shows that there is little difference in the physical size, but the higher resolutions
Teardown of DLP Projectors With 15 Years Between Them Read More »
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 Electronics and get a piece of useful merchandize! The introduction video of coffee being poured
High Voltage Coffee Mugs Unboxing Read More »
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 motor winding rig, its about the skill and not just expensive tools. You can do
How To Varnish A Tesla Coil Secondary Coil Read More »
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 IGBTs can be used in a DRSSTC Tesla Coil using the free half- and full-bridge
Where To Get “Free” TO-247 IGBTs and MOSFETs Read More »
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 and powder identification, for a live audience at the CERN / Niels Bohr Institute place
Lightnovo Raman Spectrometer Demonstration At Roskilde Festival 2022 Read More »
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 start box. I wanted to include safety features like fault detection and emergency stop, but I also wanted to remain galvanically isolated from the mains
Project Documentation: Tesla Coil Soft Start Safety Box Read More »