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Oscilloscopes

Large Test Oscilloscope
A large classic oscilloscope at the Edison Tech Center

A voltmeter will tell you a static measurement of a circuit at one point in time. These instruments can display the change of voltage over time on a screen. The device can also record the data over time, modern oscilloscopes can drop the data into a PC for further analysis.

Further reading:
How to use an oscilloscope
Oscilloscopes for radio amateurs ARRL

Old oscilloscopes
1940s oscilloscopes on display at the Edison Tech Center

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