The Oscilloscope

Check out this interesting web site

https://www.instructables.com/id/Oscilloscope-How-To/

Learning to use the Oscilloscope

Introduction

Have you ever found yourself troubleshooting a circuit, needing more information than a simple multimeter can provide? If you need to uncover information like frequency, noise, amplitude, or any other characteristic that might change over time, you need an oscilloscope!