An instrumentation amplifier is a type of differential amplifier that has been outfitted with input buffers, which eliminate the need for input impedance matching and thus make the amplifier particularly suitable for use in measurement and test equipment. The ideal common-mode gain of an instrumentation amplifier is zero, which means that it is a very →
Take a look at my last year’s Christmas Lights display and controlling them posting to Home Automation discussion group. You can find many links to videos and information on computer controlled Christmas Lights displays. →
Ground loops affect video signals. Understand them, then deal with them. When designing or installing the cables for a video transmission system, one assumption that engineers commonly make is that the local earth grounds of both ends of the cable are the same. When circumstances don’t support this assumption, the video performance can exhibit gross →
This is quite funny logo for an IC. This VIA GRA HT8501 is a real chip used on PC motherboards. The question is the naming of the chip intentional or just happened by accident? Original image source:http://leenks.com/gallery1046-58.htm →
Build Your Own Digicomp Mechanical Computer! tells about a plastic mechanical computer from the 1960s. It offered three bits of tabletop computing, back in an age where corded telephones were considered high-tech. According the article Digicomp started a bunch of kids on a career in computers. Now a member of “Friends of Digicomp” Yahoo Group →
Industrial Ethernet Technologies: Overview is a presentation intended to give an overview over the most important Industrial Ethernet technologies. It is good reading for anyone working with Ethernet and/or automation applications. →
Default Password List has saved the day several times when working with different network equipment. When the instructions are missing or the information on default passwords is very well hidden within the documentation, the Default Password List will give you the password information you quickly. →
Practical jokes do not always go well. Sometimes the most innocent jokes have the most tragic consequences. 8 Innocent Office Pranks That Went Horribly Wrong web page shows you eight videos of office pranks that did not work as expected. →
John Huntington’s Entertainment Technology Blog has an interesting posting Toshiba’s Very Cool “Space Chair”Ad. It consists mainly of two videos. The first video shows the cool Toshiba TV ad. The second video is the “Making of” video. It tells how the ad was made using several high definition cameras rigged to a big weather balloon →
xkcd webcomic has today a funny comic about difference between academia research and business. Check out that Academia vs. Business strip yourself on the comic web page (the comic strip picture is too big to fit to the layout of this blog so I could not add it nicely here). →