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Data sheetThere are very many different types of electronic components, and picking the right one for the job can be problematic. Thanks to the World Wide Web (www), sourcing the relevant technical information on a component is now just a matter of typing the number into a search engine such as google.

For example, typing the transistor number 2N3904 into a search engine produces many hits, among them will be this datasheet, which gives us all the information we need to decide if we can use this particular component in a project.

Here are some suggestions for sites with data sheets:

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