Data Sheet

Introduction 2
Electronics 3
The parts in your kit 6
Tips for assembling the circuits 9
Getting started with light-emitting diodes 10
1 Red light with green parts 10
2 Wire salad 10
3 Green instead of red 11
4 Double light 12
5 Morse code 14
6 Alternating red and green 15
7 Current “in line“ 16
8 Salt makes things conductive 16
9 Swap meet 18
10 Polarity tester 18
11 Improved polarity tester 19
12 Resistance to red 20
13 Resistors in a row 20
14 Resistors in parallel 21
15 All resistors in parallel 22
Making sounds with circuits 24
16 The police are on the way 24
17 Ambulance 24
18 Fire engine 25
19 Changing the sound on the fly 25
20 Sound or light — your choice 26
21 Blinking LED 26
Switching the transistors 27
22 The secrets of the transistor 27
23 Quick switch 28
24 Only turning the transistor off 29
25 Sound change by transistor 30
26 Alarm system with light signal 30
27 Alarm with light signal and control 32
28 Alarm on contact 32
29 Alarm system with sound 33
Controlling with light 34
30 Light makes light 34
31 Invisible light 35
32 Police arriving in darkness 36
33 Base in the balance 37
Transistors as amplifiers 39
34 Sensitive amplifier 39
35 Multiplied sensitivity 40
36 Touch button 40
37 Conductivity tester 41
38 Rain sensor with sound 42
39 Alarm! Overflow! 43
40 Low water level alarm 43
41 Sensitive light display 44
42 Night light 44
43 Light barrier 45
44 Super-sensitive light detector 45
4
Instruction Manual Contents
Electronics Learning Circuits Manual.indd 4 3/29/11 2:26 PM