Make: Electronics by Charles Platt (classic books to read TXT) 📗

them have the basics that you’ll need.

You can also visit auto supply stores such as AutoZone and Pep Boys for basics such as hookup wire, fuses, and switches, while stores such as Ace Hardware, Home Depot, and Lowe’s will sell you tools.

If you prefer to buy via mail order, you can easily find everything you need by searching online. In each section of the book, I’ll include the URLs of the most popular supply sources, and you’ll find a complete list of URLs in the appendix.

Fundamentals

Mail-ordering components and tools

Here are the primary mail-order sources that I use myself online:

http://www.radioshack.com

RadioShack, a.k.a. The Shack. For tools and components. Not always the cheapest, but the site is easy and convenient, and some of the tools are exactly what you need.

http://www.mouser.com

Mouser Electronics.

http://www.digikey.com

Digi-Key Corporation.

http://www.newark.com

Newark.

Mouser, Digi-Key, and Newark are all good sources for components, usually requiring no minimum quantities.

http://www.allelectronics.com

All Electronics Corporation. A narrower range of components, but specifically aimed at the hobbyist, with kits available.

http://www.ebay.com

You can find surplus parts and bargains here, but you may have to try several eBay Stores to get what you want. Those based in Hong Kong are often very cheap, and I’ve found that they are reliable.

http://www.mcmaster.com

McMaster-Carr. Especially useful for high-quality tools.

Lowe’s and Home Depot also allow you to shop online.

Figure P-2. You’ll find no shortage of parts, tools, kits, and gadgets online.

Companion Kits

Maker Shed (www.makershed.com) offers a number of Make: Electronics companion kits, both toolkits and bundles of the various components used in the book’s experiments. This is a simple, convenient, and cost-effective way of getting all the tools and materials you need to do the projects in this book.

Comments and Questions

Please address comments and questions concerning this book to the publisher:

O’Reilly Media, Inc.

1005 Gravenstein Highway North

Sebastopol, CA 95472

800-998-9938 (in the United States or Canada)

707-829-0515 (international or local)

707-829-0104 (fax)

We have a web page for this book, where we list errata, examples, larger versions of the book’s figures, and any additional information. You can access this page at:

http://oreilly.com/catalog/9780596153748

To comment or ask technical questions about this book, send email to:

bookquestions@oreilly.com

For more information about our books, conferences, Resource Centers, and the O’Reilly Network, see our website at:

http://oreilly.com

Safari® Books Online

Safari Books Online is an on-demand digital library that lets you easily search over 7,500 technology and creative reference books and videos to find the answers you need quickly.

With a subscription, you can read any page and watch any video from our library online. Read books on your cell phone and mobile devices. Access new titles before they are available for print, and get exclusive access to manuscripts in development and post feedback for the authors. Copy and paste code samples, organize your favorites, download chapters, bookmark key sections, create notes, print out pages, and benefit from tons of other time-saving features.

O’Reilly Media has uploaded this book to the Safari Books Online service. To have full digital access to this book and others on similar topics from O’Reilly and other publishers, sign up for free at http://my.safaribooksonline.com.

1. Experiencing Electricity

I want you to get a taste for electricity—literally!—in the first experiment. This first chapter of the book will show you:

How to understand and measure electricity and resistance

How to handle and connect components without overloading, damaging, or destroying them

Even if you have some prior knowledge of electronics, you should try these experiments before you venture on to the rest of the book.

Shopping List: Experiments 1 Through 5

If you want to limit your number of shopping trips or online purchases, look ahead in the book for additional shopping lists, and combine them to make one bulk purchase.

In this first chapter, I will give you part numbers and sources for every tool and component that we’ll be using. Subsequently, I won’t expect you to need such specific information, because you will have gained experience searching for items on your own.

Maker Shed (www.makershed.com) has put together a series of Make: Electronics companion kits. These include all of the tools and components used in book’s experiments. This is a quick, simple, and cost-effective way of getting everything you need to complete the projects in this book.

Tools

Small pliers

RadioShack Kronus 4.5-inch, part number 64-2953 or Xcelite 4-inch mini long-nose pliers, model L4G.

Or similar. See Figures 1-1 through 1-3. Look for these tools in hardware stores and the sources listed in the preface. The brand is unimportant. After you use them for a while, you’ll develop your own preferences. In particular, you have to decide whether you like spring-loaded handles. If you decide you don’t, you’ll need a second pair of pliers to pull the springs out of the first.

Wire cutters

RadioShack Kronus 4.5-inch, part number 64-2951, or Stanley 7-inch model 84-108.

Or similar. Use them for cutting copper wire, not harder metals (Figure 1-4).

Figure 1-1. Generic long-nosed pliers are your most fundamental tool for gripping, bending, and picking things up after you drop them.

Figure 1-2. Longer-nosed pliers: these are useful for reaching into tiny spaces.

Figure 1-3. Sharp-pointed pliers are designed for making jewelry, but are also useful for grabbing tiny components.

Figure 1-4. Wire cutters, sometimes known as side cutters, are essential.

Multimeter

Extech model EX410 or BK Precision model 2704-B or Amprobe model 5XP-A.

Or similar. Because electricity is invisible, we need a tool to visualize the pressure and flow, and a meter is the only way. A cheap meter will be sufficient for your initial experiments. If you buy online, try to check customer reviews, because reliability may be a problem for cheap meters. You can shop around for retailers offering the best price. Don’t forget to search on eBay.

The meter must be digital—don’t get the old-fashioned analog kind with a needle that moves across a set of printed scales. This book assumes that you are looking at a digital display.

I suggest that you do not buy an autoranging meter. “Autoranging” sounds useful—for example, when you want to check a 9-volt battery, the meter figures out for itself that you are