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Elenco 75-in-1 Electronic Project Lab User Manual

Projects i

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MX-905 75 in 1


PROJECTS
I.

BASIC SEMICONDUCTOR AND COMPONENT CIRCUITS


1.

Resistors in Series and Parallel

9

2.

Switching Circuit

11

3.

Comparator

12

4.

Window Comparator

13

5.

Winking LEDs

14

6.

Light Dimmer

15

7.

Strobe Light

16

8.

Constant-Current Circuit

17

9.

Schmitt Trigger Circuit

18

10.

Capacitor in Series and Parallel

19

11.

RC Oscillator

20

12.

Constant Voltage Circuit

21

13.

Touch Switch

22

14.

Low-Pass Filter

23

15.

Summing Amplifier

24

16.

One Shot LED

25


III.

ENTERTAINMENT CIRCUITS


A Big Change

26

17.

Electronic Siren

28

18.

Electronic Cat

28

19.

Electronic Metronome

29

20.

The Chirping Bird

29

21.

Machine Gun Pulse Oscillator

30

22.

Pencil Lead Organ

30

23.

Sound Light

31

24.

Two-Tone Patrol Car Siren

31

25.

Daylight Early Bird

32

26.

Intermittent Alarm Generator

32

27.

Electronic Woodpecker

33

28.

Rain Drop

33

29.

Photo Variable Oscillator

34

30.

Sound Machine

34

31.

Voltage Controlled Oscillator

35

32.

Power Amplifier

35


II.

THE WORLD DIGITAL CIRCUITS


33.

Transistor AND Gate Circuit

37

34.

Transistor OR Gate Circuit

37

35

Transistor NAND Gate Circuit

38

36.

Transistor NOR Gate Circuit

38

37.

Transistor Flip-Flop Circuit

39

38.

Timer LED

39

39.

Bistable Multivibrator

40

40.

Reset/Set Flip-Flop

40

41.

OP Amplifier AND Circuit

41

42.

OP Amplifier OR Circuit

41

43.

OP Amplifier Three Input NAND Gate

42