1 Book 1 Chapter 1FIGURE 1-1: An insulated wire consists of a conductor surrounded by an insulato...FIGURE 1-2: A simple electrical circuit consisting of a battery, a lamp, and so...FIGURE 1-3: A typical electronic circuit board.

      2 Book 1 Chapter 2FIGURE 2-1: A common model of an atom.FIGURE 2-2: Electrons transfer current through a wire much like a row of pool b...FIGURE 2-3: You can use a multimeter like this to measure voltage.FIGURE 2-4: Newton’s Cradle works much like alternating current.

      3 Book 1 Chapter 3FIGURE 3-1: My Mad-Scientist Lab really is a mad-scientist lab!FIGURE 3-2: Multicompartment storage boxes are ideal for storing small componen...FIGURE 3-3: Basic hand tools you’ll want to have.FIGURE 3-4: The wire on the top was stripped with wire cutters; the one on the ...FIGURE 3-5: The author modeling his favorite magnifying headgear.FIGURE 3-6: A third hand can hold your stuff so that both your hands are free t...FIGURE 3-7: A hobby vise.FIGURE 3-8: A soldering iron with a stand.FIGURE 3-9: An inexpensive multimeter.FIGURE 3-10: A solderless breadboard.FIGURE 3-11: Solid and stranded wire.FIGURE 3-12: Jumper wires for working with a solderless breadboard.FIGURE 3-13: Battery holders will help deliver power to your circuits.FIGURE 3-14: Jumper clips are great for making quick connections.FIGURE 3-15: Resistors are one of the most commonly used circuit components.FIGURE 3-16: Capacitors come in many shapes and sizes.FIGURE 3-17: An assortment of diodes.FIGURE 3-18: Light-emitting diodes.FIGURE 3-19: A look at a 2N3904 NPN transistor.FIGURE 3-20: Two popular integrated circuits: A 555 timer and an LM741 op-amp.FIGURE 3-21: Make sure your friends and family are properly warned.

      4 Book 1 Chapter 4FIGURE 4-1: A soldering iron resting on a stand.FIGURE 4-2: An antistatic wristband.

      5 Book 1 Chapter 5FIGURE 5-1: A simple schematic of a circuit that lights a lamp.FIGURE 5-2: Wires that cross may or may not actually be connected.FIGURE 5-3: A typical schematic diagram.FIGURE 5-4: A schematic diagram that uses a common ground to complete the circu...FIGURE 5-5: A schematic diagram that uses a common ground to complete the circu...FIGURE 5-6: Two equivalent diagrams showing positive and negative voltage sourc...FIGURE 5-7: A schematic diagram with parts labeled.FIGURE 5-8: A circuit that uses an integrated circuit.

      6 Book 1 Chapter 6FIGURE 6-1: One of my scarier electronics projects.FIGURE 6-2: A hand-drawn sketch for an electronic coin tosser.FIGURE 6-3: A schematic diagram for a simple coin-toss circuit.FIGURE 6-4: The schematic diagram for the coin-toss circuit after it has been m...FIGURE 6-5: A schematic diagram that indicates which components are on the main...FIGURE 6-6: A typical solderless breadboard.FIGURE 6-7: The contact holes in typical solderless breadboards are internally ...FIGURE 6-8: How the pins are numbered on a 555 timer integrated circuit.FIGURE 6-9: The breadboard after the IC has been inserted and connected to the ...FIGURE 6-10: The breadboard after the LEDs have been connected.FIGURE 6-11: The breadboard after the finger contact jumpers have been connecte...FIGURE 6-12: The prototype of the coin tosser in operation.FIGURE 6-13: A printed circuit board.FIGURE 6-14: A preprinted PCB that uses a standard breadboard layout.FIGURE 6-15: The layout for the PCB used in the coin-toss circuit.FIGURE 6-16: The completed coin-tosser PCB.FIGURE 6-17: Project boxes come in a variety of shapes and sizes.FIGURE 6-18: Location for drilling holes in the lid of the project box.FIGURE 6-19: Installing the standoffs.FIGURE 6-20: The box with the push button, battery holder, and standoffs instal...FIGURE 6-21: The circuit board with the LEDs turned around.FIGURE 6-22: The circuit board attached to the lid and the finger contacts conn...FIGURE 6-23: The completed coin-toss project.

      7 Book 1 Chapter 7FIGURE 7-1: A soldering iron.FIGURE 7-2: Positioning the soldering iron.FIGURE 7-3: Applying the solder.FIGURE 7-4: A good solder joint.FIGURE 7-5: A desoldering bulb and a desoldering braid.

      8 Book 1 Chapter 8FIGURE 8-1: You can buy a basic multimeter like this one for under $20.FIGURE 8-2: An analog multimeter.FIGURE 8-3: A bench-top multimeter.FIGURE 8-4: A simple circuit with a battery, a resistor, and an LED.FIGURE 8-5: The LED circuit assembled on a breadboard.FIGURE 8-6: Using an ammeter to measure current flow in the LED circuit.FIGURE 8-7: Using a voltmeter to measure voltage in the LED circuit.

      9 Book 1 Chapter 9FIGURE 9-1: A typical oscilloscope.FIGURE 9-2: An oscilloscope trace showing a sine wave.FIGURE 9-3: Four common waveforms.FIGURE 9-4: An oscilloscope trace showing a square wave.FIGURE 9-5: Connecting an oscilloscope probe to an audio plug.

      10 Book 2 Chapter 1FIGURE 1-1: A simple circuit.FIGURE 1-2: A short circuit.FIGURE 1-3: What goes on inside a battery.FIGURE 1-4: Common batteries.FIGURE 1-5: A simple lamp circuit.FIGURE 1-6: There are switches for every need.FIGURE 1-7: Single- and double-throw switches.FIGURE 1-8: The switched lamp project.FIGURE 1-9: The DPDT knife switch.FIGURE 1-10: Using a DPST switch to control a lamp.FIGURE 1-11: Lamps connected in series and in parallel.FIGURE 1-12: Lamps connected in series.FIGURE 1-13: Lamps connected in parallel.FIGURE 1-14: Schematic diagrams for series and parallel switch circuits.FIGURE 1-15: The assembled series switch circuit.FIGURE 1-16: The assembled parallel switch circuit.FIGURE 1-17: The switch controls two lamps.FIGURE 1-18: Another way to control two lamps.FIGURE 1-19: The completed three-way light switch circuit.FIGURE 1-20: The assembled polarity-reversing circuit.

      11 Book 2 Chapter 2FIGURE 2-1: Carbon film resistors.FIGURE 2-2: Two ways to place a resistor in series with an LED.FIGURE 2-3: The assembled circuit for Project 10.FIGURE 2-4: Combining resistors in series.FIGURE 2-5: Resistors in parallel.FIGURE 2-6: Resistors in series and parallel.FIGURE 2-7: A voltage divider circuit.FIGURE 2-8: The assembled voltage divider circuit.FIGURE 2-9: A potentiometer.FIGURE 2-10: How a potentiometer works.

      12 Book 2 Chapter 3FIGURE 3-1: A capacitor creates an electric field between two charged plates se...FIGURE 3-2: Capacitors are made in many different shapes and sizes.FIGURE 3-3: A variable capacitor.FIGURE 3-4: A capacitor charging circuit.FIGURE 3-5: Combining capacitors in parallel.FIGURE 3-6: Combing capacitors in series.FIGURE 3-7: The capacitor discharge circuit (Project 13).FIGURE 3-8: The finished AC/DC circuit (Project 14).FIGURE 3-9: A 9 V AC power adapter.

      13 Book 2 Chapter 4FIGURE 4-1: The shape of a magnetic field revealed by iron filings.FIGURE 4-2: An electromagnet.FIGURE 4-3: Inductors are simple devices.FIGURE 4-4: A typical transformer.

      14 Book 2 Chapter 5FIGURE 5-1: Several common varieties of diodes.FIGURE 5-2: Silicon crystals are formed when each silicon atom shares its outer...FIGURE 5-3: An N-type semiconductor has extra electrons.FIGURE 5-4: A P-type semiconductor has holes where electrons should be.FIGURE 5-5: A diode has a single p-n junction.FIGURE 5-6: Forward and reverse bias on a diode.FIGURE 5-7: Blocking reverse polarity (Project 15).FIGURE 5-8: Using a diode to rectify alternating current.FIGURE 5-9: A full-wave rectifier circuit, also known as a bridge rectifier.FIGURE 5-10: A bridge rectifier package.FIGURE 5-11: An LED. The shorter lead is the cathode.FIGURE 5-12: A resistor should always be used in series with an LED.FIGURE 5-13: The completed LED polarity detector (Project 17).

      15 Book 2 Chapter 6FIGURE 6-1: Transistors come in many shapes and sizes.FIGURE 6-2: NPN and PNP transistors.FIGURE 6-3: A basic transistor amplifier circuit.FIGURE 6-4: Switching an LED with an NPN transistor.FIGURE 6-5: The circuit for the LED driver (Project 18).FIGURE 6-6: The schematic diagram for the NOT gate circuit.FIGURE 6-7: The transistor NOT gate (Project 19).FIGURE 6-8: An astable multivibrator.FIGURE 6-9: Using a transistor to couple an output load to an astable multivibr...FIGURE 6-10: The LED flasher project (Project 20).

      16 Book 3 Chapter 1FIGURE 1-1: Integrated circuits in common DIP packaging.FIGURE 1-2: Solderless breadboards are designed with DIP chips in mind.FIGURE 1-3: Identifying the pins on a DIP package.FIGURE 1-4: An integrated circuit in a schematic diagram.FIGURE 1-5: Independent sections within a single IC are often shown separately ...FIGURE 1-6: A circuit for providing positive voltage, negative voltage, and gro...FIGURE 1-7: DIP sockets let you avoid soldering delicate integrated circuits.

      17 Book