Electronic Project Volume - 10

Section A : Construction Projects
S.No
 Products
Page No.
01 Electronic Temperature Controlled Soldering Iron 11
02 Circuit Using Pressuer Sensitive Resitstors 15
03 Do It Yourself Number Finding Game 17
04 Roman Alphabet Display 20
05 Overspeeding Preventer For Two - Wheelers 25
06 Make Yourself This Dynamiic Diisplay 29
07 Conversion Of TV Into CRO 37
08 Tell - Tale Clock For Industries 39
09 Solid State Power Controller 48
10 Versatile Digital  Timer 50
11 Step By Step Design Of  Electronic Voltmeter 56
12 Dew Guard 60
13 Electronic  Tug - Of -War 63
14 Boolean Function Emulator 71
15 An Electronic Organ 76
16 An Electonic Roulette 85
17 Power  Maze 91
18 Universal Digital Function  Generator 97
19 Boosting Digital Supply For Analogue Applications 106
20 Versatile 10 - Digit Code Lock 109
21 Light Meter 112
22 Automatic Emergency Light 118

SECTION - B   CIRCUIT    IDEAS
1 Power Flasher USing LM 317T 123
2 Musical UJT Organ 124
3 FM Tranmitter 124
4 Digital Probe With Duty Cycle Indication 125
5 Morse  Recorder 126
6 Electronic Mimicer 127
7 Quake Alarm 128
8 Regulated High Voltage Power Supply 129
9 Moltipurpose Burglar Alarm 130
10 Automatic Porch Light 131
11 Electronic Multi - Way Switch 132
12 Logic Tester 133
13 Cordless FM Mike 133
14 Wireless Automatic Torch 134
15 Tone Control For GuitaR amplifier 135
16 4 -Channel Sequential Lights 136
17 Data Indicator For Digital Clocks 137
18 Digital Melody 138
19 Flasher With 741 138
20 Gum Sound Effect Generator 139
21 Match Box Size Voice Transmitter 140
22 Under/Over Voltage Protection Circuit With Delay 142
23 Super Simple Graphic Equaliser 143
24 Ultra Simple Digital Probe 144
25 Electronic Letter Box 145
26 Regulated Power Supply With Battery Bake -  Up 145
27 Sound Operator Timer 146
28 Electonic Shooting  Game 147
29 Simple Electrodice 148
30 Magical  Alphabets 149
31 Touch Switch Step Control 150
32 Automatic AC Polarity Corrector With Tri - State Neon Monitor 151
33 Six -  In - one Audio Circuit 152
34 Control 2 Loads With A Single Wire 153
35 Transformerless  Power Supply 154
36 Auto Heat Limiter For Soldering Iron 155
37 Electronic Mosquito Repeller 156
38 Stair Case Lights 156
39 Hypnotic Spiral 157
40 Voltage Drop Detector 158
41 Hi - Fi Intercom 158
42 Economical Crystal Time Base 159
43 Buoy  Beacom 159
44 Substitute For Bar Graph  IC 160
45 Continuity Tester 161
46 Sustain Control For Guitar 162
47 Staircase Voltage Generator 163
48 8 - Octave Electronic  Organ 163
49 Musical 2 - Tone Chime 164
50 Musical Horn For Cars 165
51 Phase Voltage Tripper 166
52 Non - Fade Sequential Display 168
53 More Ideas Using Chips 303 169
54 Day Date Computer 170
55 Ni - Cd Battery Charger With Battery Shut - Off 171
56 CMOS Pulse Moniter 172
57 Smoke Detector Alarm 173
58 Capacitor Comparator Using Integrated Dual Timer 174
59 Frequency Counter Using Multimeter 175
60 Bird Sound Emulator 176
61 Remote TV Horizental Bar Generator 176
62 Logic Number Game 178
63 Man Machine Sound Generator 179
64 Logic Tester With Digital  Readout 179
65 Light Operated Toy Organ 180
66 Electronic Lock 181
67 Object Counter 182
68 Soil Moisture Indicator 183
69 Professional  Metronome 184
70 Telephone Answering Machine 184
71 Musical  In / Out  Indicator 186
72 50 Hz Oscillator Source 187
73 Short Circuit Indicator Cum Protector 188
74 Telephone Tap Indicator 189
75 Water Level Cum Pump Potector 190
76 Knight Rider Light 191
77 Mains Leakage Detector 192