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99 Practical Electronic Projects Download PDF

Download 99 Practical Electronic Projects PDF
99 Practical Electronic Projects PDF
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99 Practical Electronic Projects PDF
99 Practical Electronic Projects PDF

About Of the Book:

"99 Practical Electronic Projects" is a book that presents a collection of electronic circuits that can be used for a variety of practical applications. The circuits were selected because the components used in them are readily available and affordable, making them suitable for hobbyists and DIY enthusiasts. The book provides construction details where necessary but also allows for flexibility in how the circuits are built and the materials used. The book also offers guidance on how to modify the circuits for optimal performance, as well as advice on selecting and using electronic components. Overall, the book is aimed at helping hobbyists and electronics enthusiasts build and experiment with a variety of electronic projects.

This book is the availability of the circuit components. Admittedly, resistors and capacitors are easily obtained, or substitutions can be made within limited ranges. However, far too often, semiconductor types are expensive and difficult to obtain. In fact, many industrial types can be obtained only on quantity orders of 25 or more from specialized parts houses. Therefore, the circuits shown in this book were selected because the solid-state components are of the hobby type. These components are readily available over the counter at most electronic parts stores, or they can be ordered from mail-order houses at reasonable prices. Construction details are provided where necessary. If there are no specific instructions, the circuit can be built in any manner and in any cabinet, provided reasonable care is taken. When metal cabinets must be used, we teil you so. Otherwise, you can use the conventional black plastic case sold by most parts houses, or even pill bottles and plastic butter dishes. Do not worry at all about the heat sinks. When heat sinks are required, we teil you about it; otherwise, simply ignore them. To make things as easy as possible, capacitor symbols in the schematics have either a straight line and a curved line, or a straight line set in a bracket. The first Symbol indicates a nonpolarized capacitor and you can install it without regard to any markings because there is no polarity to be observed. The capacitors indicated by the line and bracket are polarized electrolytic capacitors and must be wired for the polarity shown. The line in the bracket is marked with a plus sign, and the polarity must be double-checked, because the project probably will not work if the capacitor connections are reversed. In fact, serious damage to the capacitor and other circuit components may occur when the polarity is incorrect and power is applied. Some capacitor voltage ratings might seem excessive, such as a 500-volt disc specified for a 9-volt circuit. In all instances, we have specified the lowest cost capacitor. A 500-volt disc would cost less than, say, a 10-volt miniature capacitor. Since electrolytic capacitors often represent the biggest expenditure for a project, we suggest you use the lowest cost units you can get whenever possible. When a capacitor value is critical, we specify a silver mica type. The minimum silver mica voltage rating you can easily obtain is 100 volts—use this rating to obtain the lowest cost. To be on the safe side, never use a capacitor with a voltage rating lower than that specified. Potentiometers can be any taper unless a particular taper is specified. When batteries are specified, do not use a smaller size than recommended. It is much wiser to stick to the original recommendation. Current requirements for a project are taken into account for the battery type suggested in the parts list. Every circuit will work with the specified transistors, but there is a normal variation in transistor characteristics that can affect performance. For example, a 2N3391 transistor has a possible gain range of 250 to 500, a 2-to-l difference. If the unit you use has a gain of 500, the base bias becomes critical, and the specified bias resistor might not work in your project. If you have an amplifier that distorts at high levels or an oscillator that will not start, try changing the value of the base bias resistor.

Contents Of the Book:

1. Speaker Microphone Preamplifier
2. Carbon Microphone Converter 
3. Ceramic Pickup Preamplifier 
4. Crystal Radio Amplifier
5. Hi-Z Microphone Preamplifier 
6. Budget Microphone Mixer 
7. Hi-Z Amplifier Microphone Mixer
8. Line-Powered Phonograph Amplifier
9. Lo-Z Microphone Preamplifier
10. Power Megaphone
11. Loudhailer
12. Auto Tachometer
13. Tenna-Blitz
14. Auto Adapter for Transistor Radios 
15. Headlight Minder
16. Electronic Siren 
17. Flood Alarm
18. Latching Burglar Alarm
19. Power Failure Alarm 
20. Electronic Combination Lock
21. Broadcast Band Booster
22. CB Transmission Line Monitor 
23. CB Modulation Meter
24. A-M Modulation Monitor
25. Portable CB Antenna
26. Extended CB Mobile Whip
27. Supersensitive Field-Strength Meter 
28. Tunable FSM
29. Headphone Noise and Volume Limiter 
30. Headphone Q-Peaker
31. S-9er for SWLs
32. 100-kHz Frequency Standard
33. Frequency Spotter
34. Budget CPO
35. CB Tuning Adapter
36. Electronic Keyer
54 V 37. Light Flasher
38. Light Comparator
39. Three-Way Tone Generator
40. Electronic Tuning
41. Nixie Numbers
42. Sideband Scrambler
43. 400-Watt Lamp Dimmer
44. Minidrain Pilot Lamp
45. Light-Sensitive Relay
46. Induction Motor Speed Control
47. High Torque Motor Speed Control 
48. Triac and SCR Hash Filter
49. 98^ Fuzzbox 
50. Amplified Superfuzz
51. Metronome-Timer
52. Slave Flash Tripper 
53. Slide Projector Programmer
54. 500-Watt Photoflood Dimmer
55. Enlarging Meter 
56. Stop-Motion Flash-Tripper 
57. Zener Regulator
58. Regulated 9-Volt Power Supply
59. Budget Power Supply for Solid-State Projects
60. Voltage Doubler
61. Voltage Tripler
62. Low-Ripple Preamplifier Power Supply 
63. Direct-Coupled Radio 
64. Amplified Crystal Radio
65. BFO for Transistor Radios
66. Light to Current Control 
67. Low Voltage Relay Control 
68. Light-Controlled Latching Switch
69. Appliance Tester
70. RF Probe for VOMs
71. RF Probe for VTVMs
72. Oscilloscope Time-Base Calibrator
73. Vertical-Input Calibrator
74. Low-Voltage Diode Tester
75. Silicon-Rectifier Checker
76. Nickel-Cadmium Battery Charger
77. Light-Bulb Charger for Flashlight Batteries 
78. Microphone Beeper 
79. Amplified VU Meter
80. Stereo Balancer 
81. Distortion Meter
82. Sine-Wave Squarer
83. Audio Sniffer
84. CB Scope Booster
85. I-F Signal Generator 
86. FM Alignment Oscillator
87. Signal Injector
88. Modulator for Signal Generators
89. FM Wireless Microphone
90. Radio Pager
91. Multipurpose Transmitter 
92. 15-Meter Flea-Power Transmitter
93. Treasure Finder 
94. Electronic Fish Lure 
95. OTL Amplifier 
96. Budget Scope Calibrator 
97. Two-Set Antenna Coupler
98. Two-Way Signaler 
99. Polarity Detector 
Schematic Symbols

Information Of the Book:

Title: 99 Practical Electronic Projects Download PDF
Language: English.
Size: 14 Mb
Pages: 131
Format: PDF
Author: by Herbert Friedman