Elenco 75-in-1 Electronic Project Lab User Manual
Page 2
IV. ELECTRONIC APPLICATION CIRCUITS
44.
Pulse Width Modulation
44
45.
Motion Detector
44
46.
Burglar Alarm
45
47.
Shot in the Dark
45
48.
Water Level Alarm
46
49.
Photo Alarm
46
50. Timer
Buzzer
47
51.
Sound Alarm
47
52. Photo Level Alarm
48
53.
Four Step Water Level Indicator
48
54.
Four Level Photometer
49
55.
Electronic Candle
49
56.
Motion LED
50
57.
Light Dimmer by Pulse Control
50
58.
Sound Sensor Timer
51
59. Logic Tester
51
60. Conductivity Tester
52
61.
Voltage Detector
53
62.
Electronic Coin Toss
53
63.
Intermittent Light
54
64. Two-Stage Timer LED
55
65. DC-DC Converter
56
66.
Two-Stage Timer Sound
57
67.
Sound Level Meter
58
68.
DC-DC Converter (Negative)
59
69.
Optical
Volume
59
70. Quick Draw
60
71. Sawtooth Wave Oscillator
61
72. Marching LEDs
62
73. Electronic Organ
63
74. First Aid Siren
63
75. Falling Bomb Sound
64