Download PDF: 99 Practical Electronic Projects
99 Practical Electronic Projects PDF
"99 Practical Electronic Projects" is a comprehensive book that offers a wide range of electronic circuits suitable for practical applications. The circuits included in the book have been cautiously selected based on the availability and affordability of the components required, making them ideal for hobbyists and DIY enthusiasts. While the reserve provides construction details when necessary, it likewise allows flexibility in terms of the undefined edifice and materials used. Moreover, the book offers steering on modifying the circuits to achieve best performance and provides worthful advice on selecting and utilizing electronic components. Overall, the book aims to assist hobbyists and electronics enthusiasts in edifice and experimenting with a various array of electronic projects.
One of the notable features of this book is the focus on the availability of circuit components. Recognizing that resistors and capacitors are well obtainable, the book acknowledges the challenges posed by big-ticket and hard-to-find semiconductor device types. In response, the circuits featured in the book employ solid-state components that are commonly available as hobbyist-grade components. These components can be easily obtained from electronic parts stores or through mail-order services at tenable prices. Construction details are provided as needed, but in cases where specific instructions are not given, the circuits can be well-stacked victimisation any suitable method acting and enclosure, provided that reasonable care is taken. In situations where metal cabinets are necessary, the book provides instructions accordingly. Alternatively, conventional nigrify pliant cases available at most parts stores, as swell as items like pill bottles or plastic butter dishes, can be utilized. Heat sinks, unless specified, do not need to be a concern.
To simplify matters, condenser symbols in the schematics are represented by either a straight line and a curved line or a straightaway line enclosed in a bracket. The former indicates a nonpolarized capacitance that can be installed without reckon to any markings since thither is no polarity to be observed. The capacitors represented by the line and bracket out are polarized electrolytic capacitors and must be wired reported to the shown polarity. It is material to double-check the polarity since the visualise Crataegus oxycantha not function properly if the capacitor connections are reversed. Incorrect polarity and power practical application can lead to serious undefined to the capacitor and other circuit components. It is worth noting that around capacitor voltage ratings might appear excessive, such as using a 500-volt disc for a 9-volt circuit. In these cases, the reserve emphasizes specifying the lowest-cost capacitor available. For example, a 500-volt disc capacitor would be less valuable than a 10-volt toy capacitor. When critical capacitor values are required, a silver isinglass type is specified. The lower limit silver mica emf military rating commonly available is 100 volts, which should be secondhand to get the lowest-cost option. It is well to ne'er utilise a capacitor with a voltage rating turn down than what is specified.
Potentiometers can have any taper unless a specific taper is mentioned. When it comes to batteries, it is important not to use a smaller size up than recommended. Adhering to the original recommendation is advisable as the stamp battery type suggested in the parts list takes into account the current requirements of the project. While all undefined will work on with the specified transistors, it should be noted that there can be normal variations in transistor characteristics that may bear on performance. For instance, a 2N3391 transistor has a possible gain range of 250 to 500, consequent in a 2-to-1 difference. If the transistor used in a project has a gain of 500, the base predetermine becomes critical, and the specified bias resistor may not process as intended. If issues like distortion in an amplifier at high levels or failure to take up an oscillator occur, adjusting the prize of the base predetermine resistor can be attempted as a troubleshooting step.
Contents :
AUDIO PROJECTS
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
AUTOMOTIVE PROJECTS
12. Auto Tachometer
13. Tenna-Blitz
14. Auto Adapter for Transistor Radios
15. Headlight Minder
BURGLAR-INTRUDER ALARMS
16. Electronic Siren
17. Flood Alarm
18. Latching Burglar Alarm
19. Power Failure Alarm
20. Electronic Combination Lock
HAM, and SWL PROJECTS
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
EXPERIMENTAL CIRCUITS
54 V 37. Light Flasher
38. Light Comparator
39. Three-Way Tone Generator
40. Electronic Tuning
41. Nixie Numbers
42. Sideband Scrambler
LAMP and MOTOR CONTROL CIRCUITS
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
MUSICAL INSTRUMENTATION
49. 98^ Fuzzbox
50. Amplified Superfuzz
51. Metronome-Timer
PHOTOGRAPHY PROJECTS
52. Slave Flash Tripper
53. Slide Projector Programmer
54. 500-Watt Photoflood Dimmer
55. Enlarging Meter
56. Stop-Motion Flash-Tripper
POWER SUPPLIES
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
RADIO RECEIVERS
63. Direct-Coupled Radio
64. Amplified Crystal Radio
65. BFO for Transistor Radios
REMOTE CONTROLS
66. Light to Current Control
67. Low Voltage Relay Control
68. Light-Controlled Latching Switch
TEST EQUIPMENT (GENERAL)
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
TEST EQUIPMENT (AUDIO)
78. Microphone Beeper
79. Amplified VU Meter
80. Stereo Balancer
81. Distortion Meter
82. Sine-Wave Squarer
83. Audio Sniffer
TEST EQUIPMENT (RF)
84. CB Scope Booster
85. I-F Signal Generator
86. FM Alignment Oscillator
87. Signal Injector
88. Modulator for Signal Generators
TRANSMITTER PROJECTS
89. FM Wireless Microphone
90. Radio Pager
91. Multipurpose Transmitter
92. 15-Meter Flea-Power Transmitter
MISCELLANEOUS PROJECTS
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
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Information :
Title: 99 Practical Electronic Projects PDF
Language: English.
Size: 14 Mb
Pages: 131
Format: PDF
Author: by Herbert Friedman