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Homemade Oscilloscopes

By Society & Culture & Entertainment Last updated Saturday, July/13/2024

Cathode Ray Tube Oscilloscopes

Older TVs often contain cathode ray tubes.television y electronica image by VICTRONICS from Fotolia.com

Originally, oscilloscopes used a cathode ray tube (CRT), the same kind of screen you find in older TV sets. You can make an oscilloscope using a cathode ray tube removed from an old TV, which you have connected to special circuitry that processes incoming waveforms and displays them on the screen.

Computer and Smartphone Oscilloscopes

You can also make an oscilloscope using homemade circuitry and send the signal to a computer. Install special signal processing software on the computer to view the waveform on the computer screen and even print it out. Similar systems have been devised that use smart-phones.

Warning

Cannibalizing old TV sets and discarded electronic equipment is very hazardous. Some of the interior parts can hold a lethal charge long after the equipment was last connected to an electric outlet.

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