Electronic Project Volume - 11

Section A : Construction Projects
S.No
 Products
Page No.
01 Microfile 11
02 Thyristorised Power Controller 17
03 A Volunteer In The Kitchen 20
04 A Larger Display 23
05 Load Protection Circuit For Solidstate Power Amplifiers 27
06 Game - Cum - Fum Projedct : Touch  -Me - Not 29
07 Multilingual  Numerical Display 31
08 Bank Token Display 35
09 80 W Stereo Car Deck 38
10 Office Call Bell System 43
11 A Stand - Alone EPROM Duplicator 45
12 Versatile Intercom System 48
13 Ultrasonic Pest Repeller 53
14 CMOS LED Dial Clock 57
15 Remote Switching 61
16 Portable 10 W + 10 W Stereo Cassette Player 65
17 Single Board BAsic Computer 70

SECTION - B   CIRCUIT    IDEAS
1 Micropower And High Efficiency Alarm Circuit For Clocks 86
2 Simple Electronics Siren 87
3 Electronic Thermometer 87
4 Mute Switch For Radios 88
5 Side - Tone Generator 88
6 Maruti Car Flasher 89
7 Multi - Mode Running Lights 90
8 Rotation Sensor 91
9 The K - Specialist 92
10 Solidstste Burglar Alarm 93
11 Audio Amplifier Using BEL 1895 For Porrtable Radio Receivers 94
12 Uni - Variable Power Supply 95
13 Single Chip Logic Pulser Cum Probe 95
14 Plant Tender 97
15 AC Wave Slicer For Using 115 V Units On 230 V 98
16 Digital Nocturnal  Nuisance 99
17 Simple Head Or Tail 100
18 Loudspeker  Polarity Tester 100
19 Mains Leakage Disconnector 102
20 Programmable Timer 103
21 Bass Booster 104
22 Low - Cost 10 - Chennel Multiplexer 105
23 AC Voltage Stabiliser Using Timer IC 106
24 Battery Voltage Monitor 108
25 Ding Dang Dong Bell for Digital Clock 108
26 The Yamaha Sound 109
27 Remote control Switch 109
28 Stereo Simulator 111
29 4-Tune Siren Generator 111
30 Flash Xenon Tube Tester 112
31 Stabilising The Stabiliser 113
32 Solidstate Emergency Light 114
33 Ripple-Free,Short Circuit Protected,Variable Output voltage And Current Power Supply 115
34 Two -  In - One Radio Cum Transceiver 116
35 2 - Tone Door Bell  117
36 Versatile Pocketimer 117
37 A Simple Capacitance Measurement Bridge 118
38 Mind Reader 119
39 Zener diode Tester 120
40 Multing For Stereo Cassette Player 121
41 Test Circuit For Inward Inspection Of Relays 121
42 Portable Organ 122
43 Solidstate Voltage Indicator With high voltage CutOut 123
44 Automatic Off For UM66 Doorbell 125
45 10 - Segment Record 125
46 Electronics Carbon Gauge 126
47 IC Disco Light 126
48 A Transistorised Soft Switch 128
49 Piezo Buzzer 129
50 Beeper Circuit 130
51 Low - Cost Touch Sensitive switch 130
52 High Precision Frequency And Voice Detector 131
53 In - Circuit Transistor - Diode Checker 132
54 VU  Meter With LED 133
55 JFET Stereo Preamp 134
56 Versatile digital Tester 135
57 Quiz Display 136
58 Electronic Switch For Doorbell Using Timer 137
59 Duty Cycle Selector 138
60 Automatic Dipper 139
61 LM 1895 In Cassette Tape Recorder 140
62 Multi Switch Controlled Relay 141
63 Three - In - One Test Gear 141
64 Touch Switch Cum Heat Operated Switch 142
65 A General - Purpose Temperature Sensing Circuit 142
66 Automatic Circuit Braker 143
67 Shock Preventer 144
68 Return To Zero FSK Decorder Without Using Phase - Lock  Loop 145
69 Electronic Motor Controller 146