Tab Electronics Guide to Understanding Electricity ... - Sciences Club

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Linear Electronic Circuits 251 all modern solid-state audio power amplifiers are designed with this same basic three-stage architecture, commonly referred to as the Lin three-stage topology. Constructing the 12-Watt RMS Amplifier of Fig. 8-8 If you decide to construct this amplifier circuit on a universal breadboard or solderless breadboard, the construction is rather simple and straightforward. You will need to provide some heatsinking for output transistors Q6 and Q7. If you mount the amplifier in a small metal enclosure, adequate heatsinking can be obtained by simply mounting Q6 and Q7 to the enclosure (remember to ensure that Q6 and Q7 are electrically isolated from the enclosure). For optimum performance, diodes D1 and D3 should thermally track the temperature of transistors Q6 and Q7. This can be accomplished in several ways. The diodes could be glued to the case of the output devices with a small drop of epoxy, or you can bend a small solderless “ring” terminal into a makeshift clamp, with the ring held in place by the transistor’s mounting bolt. If you construct the amplifier circuit similar to the Fig. 8-9a layout, you can simply bend the diodes into a touching position with the output transistors (remember to solder the diodes high above the board surface if you want to use this technique). If you plan to use a current-limited power supply to test this amplifier circuit (such as the “lab-quality power supply” detailed in Chapters 3 through 6), fuse F1 isn’t necessary. If you provide operational power to this amplifier circuit with a simple raw DC power supply as mentioned earlier, F1 must be included for safety purposes. Also, keep in mind that if you accidentally “short” (short-circuit) the speaker output leads together, you will probably destroy one or both of the output transistors (i.e., Q6 and Q7). Making Printed Circuit Boards by Hand Making PC boards is not as difficult as you may have been led to believe, or as your past experiences may have indicated. Circuit board
252 Chapter Eight Figure 8-9 12-watt audio amplifier: (a) and (b) top views silkscreen layout; (c) bottom view copper artwork. a b c
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TAB ELECTRONICS GUIDE TO UNDERSTAND
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TAB Electronics Guide to Understand
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To my Lord and Savior, Jesus Christ
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CONTENTS Preface Acknowledgments xv
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Contents ix Chapter 5. Capacitance
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Contents xi The Triac 287 Unijuncti
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Contents xiii Low-Pass Filters 380
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PREFACE When I was 10 years old, I
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ACKNOWLEDGMENTS I would like to tha
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1 CHAPTER Getting Started As the ol
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Getting Started 3 tiny parts that t
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Getting Started 5 Obtaining the Inf
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Getting Started 7 to get them! A li
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Getting Started 9 The Workbench A g
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Getting Started 11 potential destru
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Getting Started 13 be ideal for sta
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Getting Started 15 Figure 1-5 A ver
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Getting Started 17 should look like
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Getting Started 19 fascinating hobb
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Getting Started 21 zines (often cal
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Getting Started 23 capacitors are p
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Getting Started 25 mail-order surpl
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2 CHAPTER Basic Electrical Concepts
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Basic Electrical Concepts 29 types
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Basic Electrical Concepts 31 recogn
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Basic Electrical Concepts 33 Figure
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Basic Electrical Concepts 39 the co
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Basic Electrical Concepts 41 Voltag
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Basic Electrical Concepts 43 potent
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Basic Electrical Concepts 45 relati
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Basic Electrical Concepts Figure 2-
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Basic Electrical Concepts 49 and th
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Basic Electrical Concepts 51 vide t
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Basic Electrical Concepts 53 G (R3)
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Basic Electrical Concepts 55 presen
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Basic Electrical Concepts Figure 2-
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Basic Electrical Concepts power dis
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Basic Electrical Concepts 61 This i
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Basic Electrical Concepts relate to
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Basic Electrical Concepts 67 Exerci
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Basic Electrical Concepts that the
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Basic Electrical Concepts 73 nonsta
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Basic Electrical Concepts 75 the re
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Basic Electrical Concepts 79 Exerci
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3 CHAPTER The Transformer and AC Po
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The Transformer and AC Power 83 whi
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The Transformer and AC Power 85 Thi
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The Transformer and AC Power 87 Pea
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The Transformer and AC Power 89 cau
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The Transformer and AC Power consta
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The Transformer and AC Power 93 vir
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The Transformer and AC Power 95 fie
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The Transformer and AC Power 97 P
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The Transformer and AC Power 99 the
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The Transformer and AC Power 101 th
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The Transformer and AC Power 103 ho
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The Transformer and AC Power 105 Fi
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The Transformer and AC Power 107 ed
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The Transformer and AC Power 109 pr
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The Transformer and AC Power 111 pl
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The Transformer and AC Power 113 Tu
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4 CHAPTER Rectification Earlier in
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Rectification 117 rus of rattling a
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Rectification 119 Figure 4-3 Diode
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Rectification 121 Figure 4-4 Half-w
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Rectification 123 Figure 4-7 Curren
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Rectification 125 Figure 4-8 Curren
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Rectification 127 Figure 4-12 Redra
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Rectification 129 Be aware that som
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Rectification 131 Hopefully, F1 did
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5 CHAPTER Capacitance A capacitor i
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Capacitance 135 Ceramic is the most
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Capacitance 137 charged, when the s
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Capacitance 139 In reference to cap
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+ Capacitance 141 Figure 5-3 A DC f
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+ Capacitance 143 Figure 5-4 Full-w
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Capacitance 145 from the bridge rec
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Capacitance but it is usually prude
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Capacitance 149 Figure 5-7 Approxim
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Capacitance 151 Many of the more ex
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6 CHAPTER Transistors Before gettin
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Transistors 155 Telephone Laborator
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Transistors 157 higher positive pot
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Transistors 159 reference, the emit
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Transistors 161 Adding Some New Con
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+ Transistors 163 Figure 6-3 Practi
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Transistors 165 is typically a high
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+ Transistors Figure 6-5 illustrate
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Transistors 169 Figure 6-6 Demonstr
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Transistors 171 Figure 6-7b PNP tra
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Transistors (which is the emitter v
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Transistors 175 The transistor circ
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Transistors 177 Again referring to
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Transistors 179 will be very stable
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Transistors 181 Imagine you were go
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Transistors transfer of a voltage s
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Transistors may recall from Chapter
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Transistors 187 base current flow p
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Transistors 189 is connected to its
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Transistors 191 soon as some amount
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Transistors 193 As you have seen, t
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Transistors 195 It might be a littl
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Transistors 197 Figure 6-12 Suggest
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Transistors 199 If a load is placed
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Page 282 and 283: Linear Electronic Circuits 263 Cons
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Page 288 and 289: Linear Electronic Circuits 269 Note
Page 292 and 293: Linear Electronic Circuits 273 TABL
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Page 302 and 303: 9 CHAPTER Power Control The term th
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10 CHAPTER Field-Effect Transistors
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Field-Effect Transistors 303 Referr
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Field-Effect Transistors 305 voltag
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Field-Effect Transistors 307 Static
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Field-Effect Transistors 309 Figure
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Field-Effect Transistors 311 functi
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Field-Effect Transistors 313 Sounds
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Field-Effect Transistors 315 A UJT
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11 CHAPTER Batteries Because many h
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Batteries 319 Gelled electrolyte ba
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Batteries 321 in which mandatory di
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Batteries 323 RS1 is set to the pos
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12 CHAPTER Integrated Circuits The
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Integrated Circuits 327 mon-mode re
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Integrated Circuits 329 not be depe
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Integrated Circuits 331 Improvement
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Integrated Circuits 333 Figure 12-3
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Integrated Circuits 335 Figure 12-6
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Integrated Circuits 337 other filte
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Integrated Circuits 339 This circui
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Integrated Circuits 341 connected d
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13 CHAPTER Digital Electronics Digi
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Digital Electronics 345 The binary
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Digital Electronics 347 occur on th
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Digital Electronics 349 Multivibrat
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Digital Electronics 351 F-F1 will t
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Digital Electronics 353 Figure 13-6
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Digital Electronics 355 Summary Man
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Digital Electronics 357 IC2 is a CM
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Digital Electronics 359 Figure 13-1
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14 CHAPTER Computers In today’s w
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Computers 363 Figure 14-1 Block dia
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Computers 365 memory. Then, during
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Computers 367 When an I/O port “s
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Computers 369 with real analysis eq
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15 CHAPTER More About Capacitors an
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More About Capacitors and Inductors
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16 CHAPTER Radio and Television Rad
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Radio and Television 407 Figure 16-
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Radio and Television 409 length. At
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Radio and Television 411 the RF spe
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Radio and Television 413 tude varia
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Radio and Television 415 Figure 16-
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APPENDIX A SYMBOLS AND EQUATIONS Th
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Symbols and Equations 419 IF Interm
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Symbols and Equations 421 rcvr Rece
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Symbols and Equations 423 Formulas
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Symbols and Equations 425 I 20 log
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Symbols and Equations Meter formula
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Symbols and Equations 429 Resistanc
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Symbols and Equations 431 Temperatu
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434 Appendix B Electronic Kit Suppl
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436 Appendix B Marlin P. Jones & As
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440 Appendix C Figure C-1 (cont.) 1
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444 Index Amplifiers, audio (Cont.)
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446 Index Capacitance and capacitor
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448 Index Digital ICs, 326 Digital
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450 Index Filters (Cont.): Percussi
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452 Index Lab for electronics work,
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454 Index Photographic method for p
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456 Index Resist ink in printed cir
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458 Index Transformers (Cont.): Iso
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ABOUT THE AUTHOR G. Randy Slone is
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