This project spawned from the acquisition of an ICT branded 12V, 10A non-adjustable power supply. It had lived its life powering some device in a supermarket and made its way into my workshop. I had needed an adjustable bench supply, and the schematic was readily available for a similar model which I have attached to… Read more »
Here’s one from the archives. Way back, someone asked me to take a look at an amp that had suddenly stopped working. The amp/receiver in question was a NAD T752 and spent its life in this person’s garage, which they claimed had suddenly stopped working. Opening the cover revealed a rather disturbing sight. One of… Read more »
Like the ASUS M2N32 motherboard, this was not a successful repair, but it may provide some useful info for someone desperately Googling why their particular motherboard is kaput. This board came from the same person who had given me the M2N32 to see if anything could be done with it. The circumstances surrounding its death… Read more »
Generally speaking, when motherboards die they die for a good reason. Once you get to the point where you’ve checked every RAM slot, reset the BIOS, removed all peripherals fans and accessories, swapped CPUs and it STILL doesn’t come to life then chances are you’re in trouble. I took this on as an exercise as… Read more »
I picked up this barebones 5″ portable black and white CRT for $10 from FB marketplace some time ago. I’ve been looking for a miniature color CRT to add to my humble collection of cathode ray tube devices, but this is the next best thing for now. The brand MTC, or MTC Electronics Corporation Limited,… Read more »
Several years ago I purchased the Uni-T UT 181A multimeter to replace the crusty off-brand multimeter which was beginning to fail and give erroneous readings. The main factor driving my decision was the extensive multimeter spreadsheet featured on the EEVBlog Forums. As the data shows it seems to be better spec’d than most the meters… Read more »
Another simple tool I went far too long without. Like many things I do myself, I do it to save money and put this together with things I had readily available. The fan is from an old unused server, the rubber feet are normally used for vibration dampening hard drives in PC cases, the input… Read more »
An older wireless remote for a large overhead crane came across my bench in need of repair. The issue being that the receiver no longer responded to commands issued by the remote. One clear issue was the rechargeable battery pack had been replaced with non-rechargeable alkaline AA’s and there was seriously bad corrosion on the… Read more »
For the longest time I never had a proper variable bench power supply. One reason being they seemed very expensive for what they do, or at least for what I needed. There are the questionable Chinese ones in the $100 range which have adequate specs if you’re willing to take the risk, or you can… Read more »
Every so often a more mechanical than electrical device finds its way into my work area. A local machine shop had a pair of Makita GA-5020 angle grinders that had been used and abused and needed some work. One didn’t work and the other had some vibration issue. I found a nice exploded parts diagram… Read more »