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PART 1

Some Basic Ideas and Components

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PART 2

Operational Amplifiers and Digital Electronics

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PART 3

Circuit Number

 

Two Transistor Radio

1

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LED Flasher

2

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Relay Driver

3

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Sound Operated Switch

4

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Infra-Red Switch

5

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Low Power Amplifier

6

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Simple Alarms

7

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Long Duration Timer

8

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"Person Counter"

9

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I.R. Headphone System

10

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Stepper Motor Driver

11

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Optically Isolated Triac Driver

12

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Combination locks

13

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Reaction Timer

14

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Sound to Light

15

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10 Watt Power Amplifier

16

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Triac Light Dimmer

17

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Stroboscope

18

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Appendix 1
Fault Finding

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Appendix 2
Resistor/Capacitor Colour Code

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Appendix 3
Pin Connections

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