Here’s what I come up with for sawtooth signal for the scope. I took the ramp generator circuit from learningaboutelectronics.com It uses 3/4 Op Amps from the LM324 chip. I tested the circuit from learningaboutcelectronics.com and it works in multisim. S1 and R8 controls the frequency. R6 controls the amplitude of the sawtooth voltage. When …
Scopes are expensive and hard to find locally. Here we are going to build one out of a CRT TV. THIS METHOD ONLY WORKS WITH CRT TV, NOT PLASMA, FLAT SCREEN OR LCD TV. The circuit only uses the TV Deflection coils to create a magnetic field to attract the electron beam that the gun …
In this blog post I will show you an easy project that can charge Li-on batteries that have the built-in protection circuit. All you need is a 1A or higher rectifier diode, 1 amp linear adjustable voltage regulator(such as LM317), 240 and 680 ohm resistor(any wattage) and a 100 ohm trimmer(For adjusting the charging voltage).
This tool allows you to uninstall programs as well as see when they were installed. It lets you search through the apps. It can remove files left over by the program. It can clean clean the uninstall registry key. To see how to use it just open the exe file.
This tool allows you to easily end a non-responsive program. Or a whole truckload of them running at once. This tool works by specifying anything that should be contained in window text and/or classname. You can specify the /NR switch to only kill not responding programs. It’s just like Linux’s xkill command.
Here’s a simple and easy Halloween project. It is based off of a single ended transistor audio amplifier. The transistor amplifies the audio voltage to one that can light up an LED. The volume should be turned up all the way to get best performance. Since audio singles are hardly any strong. If you want …
This light-weight Electronics Engineering Calculator app is pretty neat and good. It works on many platforms such as Android, Linux, and Windows. The app contains every calculator found on the calculator page on this site. The android version is not on google play yet, and I don’t know if it ever will. You can download …
This plugin uses the linux say command to say chat messages, lets you know when some joins or quits, etc.. It requires the gnustep-gui-runtime and python To install the gnustep runtime you can type this in on ubuntu: then you can test to see if the say command works by typing Then if that works …
Here you will find a archive of lots of components that were left out of the app but were hard to find it in a zip file of all of them. So now you can download the whole tar file off of Google Drive or pick and choose the ones you want from the preview. …
This tiny shell script will allow you to backup the settings and programs from a live linux session to two .tar files. Here’s a list of the tar files and what they do. config/data.tar – Configuration and settings files. (/var and /usr directories) if any of the files in data.tar exists it will be overwritten. …
Circuit Simulator