Electronic Projects At Home DIY Electronics
Transistor Touch Switch Simple Science Project
Here is a simple one transistor touch switch that you can build easily on a solderless breadboard. Learn how to build a circuit that turns on an LED lamp simply by placing your finger across two wires.
This project illustrates how you can use a transistor as a solid state switch. No moving parts. Exept for your finger of course. More...
Sound Card Oscilloscope and Multivibrators
What can a sound card oscilloscope do for me? This is the question I get asked a lot and I usually say something along the lines of "No engineer can do without one". Not many people find this very helpful so I've built a simple astable multivibrator and applied the oscilloscope to it. In trying to explain what the waveforms mean I hope to answer the question better.More...
Sound Card Oscilloscope - Build Better Electronics Projects
You are going to need test equipment. A multimeter is essential and cheap but it will only take you so far. What you really want is a digital oscilloscope, the ultimate tool of any electronics engineer or hobbyist.
Make this the next project that you build and you will be able to use it to fault find and explore all of your future circuits. But oscilloscopes are expensive, aren't they? Yes they can be but this is a solution that everyone can afford.More...
Darlington Transistor Touch Switch Simple Science Project
Here is a simple two transistor darlington transistor touch switch that you can build easily on a solderless breadboard. This build follows on from the single transistor touch switch project to significantly increase the sensitivity of the touch sensor. More...
Sound Card Oscilloscope Software
I was so impressed by the potential of the Sound Card PC Oscilloscope probe described in an earlier article that I decided to look for alternative software packages that could be used with it. I found one that appears to deliver better results which I am posting here. More...
How To Make A Free Sound Card PC Oscilloscope
A good oscilloscope can cost you a lot of money but you can build this PC based oscilloscope for less than a decent cup of coffee. Yes it has limitations but if you have no way of observing the signals in your electronics projects and you can't afford to buy a full featured oscilloscope then this little project could be the answer to your prayers. Not only does it give you a dual channel oscilloscope but it will also do a Fast Fourier Transform analysis of your signals too. More...
How To Build An Astable Multivibrator Circuit Without Solder
One of the first electronic circuits I ever built was an astable multivibrator. It's a very simple yet reliable method of flashing a couple of LED's that you can build on a solderless breadboard in no time. Follow these simple instructions and experience the thrill of creating an electronic device and watching it do it's job. More...
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