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Electronics from the Ground Up: Learn by Hacking, Designing, by Ronald Quan

By Ronald Quan

Are you eager about the facility of even the smallest digital equipment? Electronics from the floor Up courses you thru step by step experiments that exhibit how digital circuits functionality so that you can improve your abilities and layout customized circuits. You’ll paintings with a number circuits and signs regarding optical emitters and receivers, audio, oscillators, and video.

This useful source explains elements, development suggestions, simple try out gear, circuit research, and troubleshooting. pictures, schematics, equations, and graphs are incorporated all through. by means of the top of the e-book, you’ll be capable to hack and alter current circuits to create your individual specified designs.

Do-it-yourself experiments cover:

Batteries, lamps, and flashlights
Light emitters and receivers
Diodes, rectifiers, and linked circuits
Transistors, FETs, and vacuum tubes
Amplifiers and feedback
Audio indications and circuits
Oscillators
AM and FM signs and circuits
Video fundamentals, together with video signals
Video circuits and platforms

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Extra resources for Electronics from the Ground Up: Learn by Hacking, Designing, and Inventing

Example text

For example, soldering two 100-μF electrolytic capacitors soldered back to back in series results in a 50-μF nonpolarized capacitor. See Figure 2-31 for an illustration of back-to-back connections. FIGURE 2-31 (From left to right) A nonpolarized electrolytic capacitor and two electrolytic capacitors connected with their (–) terminals and two electrolytic capacitors connected back to back with their (+) terminals. 2 μF and under are generally nonpolarized, which means that you can connect these capacitors without regard to polarity.

The glue may be removed a number of ways from the wire, but a quick method is to simply use fine sandpaper or emery cloth (see Figure 2-20). FIGURE 2-19 Paper-wire wrap and #112 bulb. FIGURE 2-20 The wire is cleaned so as to be uninsulated via sanding off the residual glue once the paper has been removed. In Figure 2-20, once the wire is cleaned, a small length of the wire is then wrapped around the threads of the #112 bulb with an extra length supplied to allow “threading” the wire-bulb assembly into the cardboard tube up to the top hole.

For even higher power, the larger plastic-case TO-247 transistor is used. Not as common today is the TO-3 metal case power transistor. We will avoid using TO-3 transistors because the installation on heat sinks is more difficult than mounting plastic-case power transistors. Also, this metal-case power transistor is not as popular as it used to be. A bipolar transistor has three terminals—the emitter, base, and collector. And there are two types of polarities for bipolar transistors—NPN and PNP.

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