Author Archives: Simon Wyss

Server Power Supply Pinout

While dumpster diving the electronic scrap I find always interesting parts. Last week I found some rack server with hot swap power supply. I removed the power supplies and reverse engineered the pinout of them. On the following pictures you … Continue reading

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ATX Power Supply 18V and 30V Modification

My first attempt to build a power supply capable of 10A @ 30V for my 2x100W Class D-Amp was not successful, because I only reached 10A@ 24V. My next idea was, to modify an ATX-Computer-Power-Supply from 12V to 18V and … Continue reading

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iROX Radio Alarm Clock external Power-Supply

The two 1.5V AA batteries in my radio (DCF77) alarm clock were empty and I didn’t want to change them with new ones. I preferred a solution with a DC wall adaptor. The alarm clock has a built in projector, … Continue reading

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Netgear GS608 v2 Repair

The LAN connection from a computer to my home-network stopped working from one day of the other. First I thought, it could have to do with the network-lan-card in the specific computer. Sadly I did no detailed test and did … Continue reading

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Power supply for 2x100W Class-D Audio Amp

In my first semester of the EIT study at the FHNW in Windisch (Switzerland) I built in the Module “Basic Laboratory (of Electrical Engineering)” a Class-D audio amp. This amp was developed by Stefan Wicki at FHNW http://wictronic.ch/CDAMP.htm. The AMP … Continue reading

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User-Scripts for Browsers

User-Scripts are JavaScript Scripts for many Browsers. With those, you can modify websites locally in your browser. Own Scripts, that I have written: Farnell Online-Shop Switzerland (ch.farnell.com): language set to German, accept cookies, set cursor to search field: http://www.simonwyss.me/userscripts/farnell_1.user.js

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CTEK MXS 10 adjustable output voltage

For two lead gel batteries I bought the CTEK MXS 10 battery charger. This has a maximum charging current of 10A. The device is described as usable for any kind of car lead batteries, AMG lead batteries and most  gel … Continue reading

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