Author Archive

Velleman K7000 signal tracer / injector

This signal tracer/injector has been designed to inject or detect a specific signal into an audio circuit in need of repair (such as amplifiers, radios, tone controls, …) so as to detect the fault. Signal tracer/injector is typically used when testing audio frequency circuits (there are also tracer/injector circuits for other applications as well). With

D-Link KVM switch

4-Port USB KVM Switch DKVM-4U is a device that allows you to control up to 4 PCs using only one monitor, keyboard and mouse. The DKVM-4U is designed to allow you to control up to 4 computers from a single keyboard, monitor and mouse, so you don’t have to purchase a monitor, keyboard and mouse

Friday Fun: Software Testing

Funny software testing comic: http://turnoff.us/geek/software-test And some more: http://turnoff.us/geek/modern-evil http://turnoff.us/geek/annoying-software

Star Wars day Arduino projects

Star Wars Day is an informal commemorative day observed annually on May 4 to celebrate the Star Wars media franchise. To celebrate #StarWarsDay, Arduino team has put together a list of inspired builds from a galaxy far, far away. #MayThe4thBeWithYou The force is strong with these Arduino projects! https://blog.arduino.cc/2022/05/04/the-force-is-strong-with-these-arduino-star-wars-projects/

Cyber security news May 2022

This posting is here to collect cyber security news in May 2022. I post links to security vulnerability news to comments of this article. You are also free to post related links to comments.

Canon MP620 printer fixing

In jet printer is affordable, versatile and great at printing photos and graphics. But they have also set of problems. Troubleshooting common inkjet printer problems needs to be done too often. The most common problem with inkjet printers is not printing at all, poor print quality and the ink being very expensive. Usually print quality

Friday Fun: Browser and Internet

The IT Crowd is a British sitcom set in the offices of the fictional Reynholm Industries in London. The comedy was running from 2006 to 2013. The programme was critically acclaimed and has a cult following. I found this very funny video The IT Crowd – Browser and Internet. Here are YouTube links to the

MT87 clamp meter

MT87 Digital Clamp Meter is the cheapest digital clamp multimeter I have found. It has been sold at price for less than 10 Euros/Dollars, while some other places sell the same mater often at around 20-30 Euros price. Main Features: ● Mini and compact design, easy to hold ● Data hold and LCD display, easy

IC testers to see if vintage chip is good or bad

Semiconductor test equipment (IC tester), or automated test equipment (ATE), is a system for giving electrical signals to a semiconductor device to compare output signals against expected values for the purpose of testing if the device works as specified in its design specifications. IC Testers are devices which are used to test Integrated Circuits by

Friday Fun: Error messages in Haiku?

Imagine if, instead of cryptic text strings, your computer produced error messages in haiku… A file that big? It might be very useful. But now it is gone. More examples at https://www.gnu.org/fun/jokes/error-haiku.en.html