EP Volume 1 (Circuit Ideas)
1 Two-way Intercom
2 Simple LED Continuity Checkci
3 Wait Please Indicator
4 Transmitter
5 Exclusive OR and OR Gates Work Without Power Supply
6 Semiconductors Tester
7 Split Phase Power Supply
8 A Photoflash Slave for Electronic Flash
9 Portable 50Hz Source
10 Automatic Rise and Fall Siren
11 Electronic Organ
12 Self-regulating Battery Charger With Short-circuit Protection
13 Miniature Hearing Aid
14 Changeover Switch With Built-in Priority
15 Binary State Indicator
16 A Universal Schmitt Trigger
17 Mains Lamp Flasher With Added Attractions
18 Psychedelic Lights
19 A Foldover Circuit (Improves dynamic range without sacrificing linearity)
20 A Simple Security System
21 Multi-Channel Intercom
22 Electronic Organ
23 Rain Alarm
24 AM Transmitter
25 Metronome
26 Load Current Capacity
27 Electronic Parrot
28 Battery Level Indicator
29 1C 555 as Analog Switch For Positive Signals
30 Low-Cost Telephone Amplifier
31 Simple Electronic Multimeter
32 Delay Switch
33 Auto Test Circuit for Displays & ICs
34 Water Level Indicator
35 Easy-to-make Electric Guitar
36 Light Activated Switch
37 Using Loudspeaker as a Microphone
38 Electronic Method to Measure Velocity of Sound
39 Simple Electric Lock
40 Tweeter Bell
41 Diode Tester
42 Simple Clock Generator for TTL Work
43 One-Transistor Gramophone Transmitter
44 Water Level Controller
45 Simple Power on Reset Circuit
46 Dual Function Meter
47 Light to Frequency Converter
48 Voltage to Frequency Converter
49 Bicycle Turning Indicators
50 Emergency Lamp
51 Polarity or Null Indicator
52 Hi-Fi Amplifier for Ceramic Pick-ups
53 Regulated DC Power Supply
54 LED Transistor Tester
55 Light Activated Alarm
56 Counter Using Calculator
57 Emergency Light
58 Variable Frequency Astable Multivibrator- Using Nand Gates
59 Neon Lamp Leakage Tester
60 Audio Tester
61 Toy Telephone
62 Stereo Balance Indicator
63 Overheat Indicator
64 DC Voltage Level Monitor Indicator
65 MW Transmitter
66 Inexpensive LED Bargraph Voltmeter
67 Low-Cost Synchronous Switching Heat—Staging Controller
68 Single Phase Preventer
69 Dry Cell Recharger for Three Cells
70 Electronic Flasher
71 Testing of SCRs and Triacs on Multimeter
72 Bistable Touch Switch
73 Battery Eliminator With Emergency Light
74 Digital Electronic Counter
75 LED Flasher
76 Variable Regulated Voltage Battery Eliminator
77 Hum Reducing Circuits
78 A Simple Soft-Start Circuit
79 Chirping Birds Circuit
EP Volume 1 (Construction Projects)
1 Add This Electronic Alarm Delay to Your Alarm Clock
2 Add This Low-Cost Tuning Indicator to Your Radio Receiver
3 Make^ Yourself This Low-Cost Solidstate Emergency Light
4 Automatic Polarity Changeover for Multimeters
5 Make Yourself This Crystal—Controlled Electronic Digital Clock
6 Make Yourself This Function Generator Using A Single 1C
7 Proportional Power Control Using SCR
8 Make Yourself This Intruder Alarm
9 Some Tips for Servicing Hearing Aids
10 Make Your Own Manual AC Mains Regulator
11 Make Yourself This Proto-Experimenter for Breadboarding 1C Circuits
12 Make Yourself A Solidstate Starting Time Delayer
13 Make Yourself This Rechargeable Ni-Cd Torch
14 Build This Low-Cost Power Supply for Digital ICs
15 Protect Your Alarm by Automatically Silencing after a Preset Delay
16 Make Yourself This Stereo Tape Cassette Player
17 Control Water Level in Overhead Tank Automatically
18 Make Yourself This Light Beam Controlled Magic Toggling Switch for Remote Control
19 Build This Versatile Intercom
20 Make Yourself This Electronic Timer with Audio Alarm
21 Convert Your Manual Voltage Stabiliser to an Automatic Stabiliser at Nominal Cost
22 Make Yourself This High/Low Voltage Cutout To Suit Any Delay and Relay
23 Make Yourself This Musical Melody Synthesiser
24 Make Your Own Automatic Voltage Regulator
25 Add This Battery State Indicator to Your Equipment.
26 Make Yourself This 3-Band Radio Receiver using BEL 700 1C
27 Make Yourself This Highly Versatile DC Power Supply
28 Make Yourself This Boatman s Puzzle
29 Add This Current Limiting Facility to Your DC Power Supply
30 Make Yourself This Versatile Touch Plate
31 Make Yourself This Musical Kaleidoscope
32 Make Yourself This Pulse Generator Using ICs
33 Make Your Own Timer Interval Setter
34 Build Your Own AC Mains Voltage Regulator Using An 1C
35 Add This Stereo Cassette Preamplifier to Your Stereo System
36 Add This Seconds Blinker To Your Digital Clock
37 A Ladder Crystal Filter Receiver for the Beginner
38 Make Yourself A Reverb Amplifier
39 Simplified Design of Power Supply Transformers
Brand: Kits'n'spares, Marketed by: Kits'n'spares
