| #
|
Project
|
Page
|
Date
|
Made
|
Worked
|
Build
|
Review
|
| 001
|
#Light-Controlled Bird
|
12
|
|
|
|
|
|
| 002
|
#Transistor Radio
|
13
|
|
|
|
|
|
| 003
|
#Sound Scooper
|
14
|
|
|
|
|
|
| 004
|
#American Patrol Car Siren
|
15
|
2018-03-17
|
✓
|
✓
|
|
review
|
| 005
|
#Digital Roulette
|
16
|
|
|
|
|
|
| 006
|
#IC Organ
|
16
|
|
|
|
|
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| 007
|
#Light Telegraph
|
17
|
|
|
|
|
|
| 008
|
#Introducing the Resistor
|
17
|
|
|
|
|
|
| 009
|
#Parallel Resistor
|
18
|
|
|
|
|
|
| 010
|
#Meet the Diode
|
18
|
|
|
|
|
|
| 011
|
#The LED - a Special Diode
|
19
|
|
|
|
|
|
| 012
|
#The Electronic Gas Tank
|
19
|
|
|
|
|
|
| 013
|
#Capacitors in Series and Parallel
|
20
|
|
|
|
|
|
| 014
|
#Meet the Transistor
|
20
|
|
|
|
|
|
| 015
|
#Transistor as switches
|
21
|
|
|
|
|
|
| 016
|
#PNP Transistor Switch
|
22
|
|
|
|
|
|
| 017
|
#NPN Transistor Switch
|
22
|
|
|
|
|
|
| 018
|
#Delay Light
|
23
|
|
|
|
|
|
| 019
|
#Night Light
|
23
|
|
|
|
|
|
| 020
|
#Electronic Timer
|
24
|
|
|
|
|
|
| 021
|
#Capital Letter Display
|
24
|
|
|
|
|
|
| 022
|
#Small Letter Display
|
25
|
|
|
|
|
|
| 023
|
#Number Display
|
25
|
|
|
|
|
|
| 024
|
#An Invertor Circuit
|
26
|
|
|
|
|
|
| 025
|
#Meet the OR Gate
|
26
|
|
|
|
|
|
| 026
|
#Introducing the AND Gate
|
27
|
|
|
|
|
|
| 027
|
#Using the NOR Gate
|
27
|
|
|
|
|
|
| 028
|
#Meet the NAND Gate
|
28
|
|
|
|
|
|
| 029
|
#How a Multivibrator Works
|
28
|
|
|
|
|
|
| 030
|
#A One-Shot Multivibrator
|
29
|
|
|
|
|
|
| 031
|
#An R-S Flip Flop
|
29
|
|
|
|
|
|
| 032
|
#Meet the Oscillator
|
30
|
|
|
|
|
|
| 033
|
#Changing Oscillation with Capacitor
|
30
|
|
|
|
|
|
| 034
|
#Changing Oscillation with Foreign Substance
|
31
|
|
|
|
|
|
| 035
|
#More about Oscillator
|
31
|
|
|
|
|
|
| 036
|
#A Push-Pull Oscillator
|
32
|
|
|
|
|
|
| 037
|
#Low Distortion Sinewave Oscillator
|
32
|
|
|
|
|
|
| 038
|
#Strobe Light
|
33
|
|
|
|
|
|
| 039
|
#CdS Controlled Oscillator
|
33
|
|
|
|
|
|
| 040
|
#Frequency Shift Oscillator
|
34
|
|
|
|
|
|
| 041
|
#Electronic Grandfather Clock
|
34
|
|
|
|
|
|
| 042
|
#Electronic Metronome
|
35
|
|
|
|
|
|
| 043
|
#Motion Detector
|
35
|
|
|
|
|
|
| 044
|
#Door Alarm
|
36
|
|
|
|
|
|
| 045
|
#Rapid LED Display Switching
|
36
|
|
|
|
|
|
| 046
|
#Code Practice Unit
|
37
|
|
|
|
|
|
| 047
|
#Twin-T Audio Oscillator
|
37
|
|
|
|
|
|
| 048
|
#Current Switch
|
38
|
|
|
|
|
|
| 049
|
#Shot in the Dark
|
38
|
|
|
|
|
|
| 050
|
#Variable A-C Oscillator
|
39
|
|
|
|
|
|
| 051
|
#Two-Tone Buzzer
|
39
|
|
|
|
|
|
| 052
|
#Sawtooth Wave Oscillator
|
40
|
|
|
|
|
|
| 053
|
#Astable Multivibrator
|
40
|
|
|
|
|
|
| 054
|
#Monostable Multivibrator
|
41
|
|
|
|
|
|
| 055
|
#Code Practice Unit II
|
41
|
|
|
|
|
|
| 056
|
#The Noisy Light
|
42
|
|
|
|
|
|
| 057
|
#Hearing Aid Amplifier
|
42
|
|
|
|
|
|
| 058
|
#Light/Sound Code Practice Unit
|
43
|
|
|
|
|
|
| 059
|
#Light Controlled Burglar Alarm
|
43
|
|
|
|
|
|
| 060
|
#DC-DC Converter
|
44
|
|
|
|
|
|
| 061
|
#Count Down Timer
|
44
|
|
|
|
|
|
| 062
|
#Transistor Frequency Doubler
|
45
|
|
|
|
|
|
| 063
|
#One Transistor Full-Wave Rectifier
|
45
|
|
|
|
|
|
| 064
|
#Crystal Set Radio
|
46
|
|
|
|
|
|
| 065
|
#Funny Transistor Radio
|
46
|
|
|
|
|
|
| 066
|
#Wireless Code Transmitter
|
47
|
|
|
|
|
|
| 067
|
#Remote Water Level Detector
|
47
|
|
|
|
|
|
| 068
|
#IC Radio
|
48
|
|
|
|
|
|
| 069
|
#Morse Code Transmitter
|
48
|
|
|
|
|
|
| 070
|
#AM Transmitter
|
49
|
|
|
|
|
|
| 071
|
#Broadcasting Organ
|
49
|
|
|
|
|
|
| 072
|
#Two-Tone Patrol Car Siren
|
50
|
|
|
|
|
|
| 073
|
#Plant Growth Stimulator
|
50
|
|
|
|
|
|
| 074
|
#Electronic Woodpecker
|
51
|
|
|
|
|
|
| 075
|
#Fish Caller
|
51
|
|
|
|
|
|
| 076
|
#Electronic Raindrops
|
52
|
|
|
|
|
|
| 077
|
#Pencil Lead Organ
|
52
|
|
|
|
|
|
| 078
|
#Electronic Motorcycle
|
53
|
|
|
|
|
|
| 079
|
#Machine Gun Pulse Detector
|
53
|
|
|
|
|
|
| 080
|
#Electronic Siren
|
54
|
|
|
|
|
|
| 081
|
#Chirping Bird
|
54
|
|
|
|
|
|
| 082
|
#Electronic Cat
|
55
|
|
|
|
|
|
| 083
|
#Electronic Bird
|
55
|
|
|
|
|
|
| 084
|
#Horror Movie Sound Effect
|
56
|
|
|
|
|
|
| 085
|
#Electronic Organ
|
56
|
|
|
|
|
|
| 086
|
#Sound Machine
|
57
|
|
|
|
|
|
| 087
|
#Sound Machine II
|
57
|
|
|
|
|
|
| 088
|
#Multi-Tone Siren
|
58
|
|
|
|
|
|
| 089
|
#Digital Rhythm
|
58
|
|
|
|
|
|
| 090
|
#Two-IC Electric Organ
|
59
|
|
|
|
|
|
| 091
|
#Majority Logic Gate
|
59
|
|
|
|
|
|
| 092
|
#Electronic Coin Toss
|
60
|
|
|
|
|
|
| 093
|
#Electronic Coin Toss II
|
60
|
|
|
|
|
|
| 094
|
#Electronic Coin Toss III
|
61
|
|
|
|
|
|
| 095
|
#Even or Odd
|
61
|
|
|
|
|
|
| 096
|
#Quick Draw Gate
|
62
|
|
|
|
|
|
| 097
|
#Close in
|
62
|
|
|
|
|
|
| 098
|
#ESP Tester
|
63
|
|
|
|
|
|
| 099
|
#The Light Fantastic
|
63
|
|
|
|
|
|
| 100
|
#Shooting Game
|
64
|
|
|
|
|
|
| 101
|
#Marching LEDs
|
64
|
|
|
|
|
|
| 102
|
#Electronic Dice
|
65
|
|
|
|
|
|
| 103
|
#Electronic Roulette
|
65
|
|
|
|
|
|
| 104
|
#Meet the VCO
|
66
|
|
|
|
|
|
| 105
|
#Silicon Diode Solar Cell
|
66
|
|
|
|
|
|
| 106
|
#Integrating Circuit
|
67
|
|
|
|
|
|
| 107
|
#Astable Multivibrator Using OP Amplifier
|
67
|
|
|
|
|
|
| 108
|
#Pulse Generator
|
68
|
|
|
|
|
|
| 109
|
#Comparator
|
68
|
|
|
|
|
|
| 110
|
#Experiment of Comparator
|
69
|
|
|
|
|
|
| 111
|
#Comparator with Hysteresis
|
69
|
|
|
|
|
|
| 112
|
#Constant Current Sources by OP Amplifier
|
70
|
|
|
|
|
|
| 113
|
#Non-Inverting Adder
|
70
|
|
|
|
|
|
| 114
|
#Schmitt Trigger Circuit
|
71
|
|
|
|
|
|
| 115
|
#Delayed Timer
|
71
|
|
|
|
|
|
| 116
|
#Pulse Frequency Doubler
|
72
|
|
|
|
|
|
| 117
|
#Touch Switch Using OP Amplifier
|
72
|
|
|
|
|
|
| 118
|
#Early Bird
|
73
|
|
|
|
|
|
| 119
|
#DC-DC Converter by OP Amplifier
|
73
|
|
|
|
|
|
| 120
|
#Inverting Amplifier
|
74
|
|
|
|
|
|
| 121
|
#Non-Inverting Amplifier
|
74
|
|
|
|
|
|
| 122
|
#Differential Amplifier
|
75
|
|
|
|
|
|
| 123
|
#Differential Output Amplifier
|
75
|
|
|
|
|
|
| 124
|
#Power Amplifier Using OP Amplifier
|
76
|
|
|
|
|
|
| 125
|
#Balanced Transformerless Amplifier
|
76
|
|
|
|
|
|
| 126
|
#Three-Stage Differential Amplifier
|
77
|
|
|
|
|
|
| 127
|
#VCO Using OP Amplifier
|
77
|
|
|
|
|
|
| 128
|
#Voltage Controlled Amplifier
|
78
|
|
|
|
|
|
| 129
|
#V-F Converter
|
78
|
|
|
|
|
|
| 130
|
#F-V Converter
|
79
|
|
|
|
|
|
| 131
|
#White Noise Generator
|
79
|
|
|
|
|
|
| 132
|
#Sweep Generator
|
80
|
|
|
|
|
|
| 133
|
#Multiple-Function IC Project
|
80
|
|
|
|
|
|
| 134
|
#Sound Alarm
|
81
|
|
|
|
|
|
| 135
|
#Photo Organ
|
81
|
|
|
|
|
|
| 136
|
#Vibrato Organ
|
82
|
|
|
|
|
|
| 137
|
#IC Power Amplifier
|
82
|
|
|
|
|
|
| 138
|
#IC Power Amplifier II
|
83
|
|
|
|
|
|
| 139
|
#Oscillator Using Power Amplifier IC
|
83
|
|
|
|
|
|
| 140
|
#CdS Controlled IC Oscillator
|
84
|
|
|
|
|
|
| 141
|
#Phase Shift Oscillator
|
84
|
|
|
|
|
|
| 142
|
#Intercom
|
85
|
|
|
|
|
|
| 143
|
#A Water Service Pipe Sound
|
85
|
|
|
|
|
|
| 144
|
#Electronic Klaxon
|
86
|
|
|
|
|
|
| 145
|
#Wide Range Audio Frequency Oscillator
|
86
|
|
|
|
|
|
| 146
|
#Switching Circuit
|
87
|
|
|
|
|
|
| 147
|
#RTL Invertor
|
87
|
|
|
|
|
|
| 148
|
#RTL Buffer
|
88
|
|
|
|
|
|
| 149
|
#RTL OR Gate
|
88
|
|
|
|
|
|
| 150
|
#RTL AND Gate
|
89
|
|
|
|
|
|
| 151
|
#Transistor OR Gate
|
89
|
|
|
|
|
|
| 152
|
#Transistor AND Gate
|
90
|
|
|
|
|
|
| 153
|
#Transistor XOR Gate
|
90
|
|
|
|
|
|
| 154
|
#Special NAND Gate
|
91
|
|
|
|
|
|
| 155
|
#DTL OR Gate
|
91
|
|
|
|
|
|
| 156
|
#DTL AND Gate
|
92
|
|
|
|
|
|
| 157
|
#DTL NOR Gate
|
92
|
|
|
|
|
|
| 158
|
#DTL NAND Gate
|
93
|
|
|
|
|
|
| 159
|
#DTL Exclusive OR Gate
|
93
|
|
|
|
|
|
| 160
|
#CMOS Invertor
|
94
|
|
|
|
|
|
| 161
|
#CMOS Buffer
|
94
|
|
|
|
|
|
| 162
|
#CMOS OR Gate
|
95
|
|
|
|
|
|
| 163
|
#CMOS AND Gate
|
95
|
|
|
|
|
|
| 164
|
#CMOS 3-Input AND Gate
|
96
|
|
|
|
|
|
| 165
|
#CMOS NOR Gate
|
96
|
|
|
|
|
|
| 166
|
#CMOS 4-Input NOR Gate
|
97
|
|
|
|
|
|
| 167
|
#CMOS 4-Input NOR Gate II
|
97
|
|
|
|
|
|
| 168
|
#De Morgan's Theorem
|
98
|
|
|
|
|
|
| 169
|
#Experiment of Threshold Voltage
|
98
|
|
|
|
|
|
| 170
|
#NAND/NOR and Transistor Switch
|
99
|
|
|
|
|
|
| 171
|
#CMOS XOR Gate
|
99
|
|
|
|
|
|
| 172
|
#CMOS NAND Enable Circuit
|
100
|
|
|
|
|
|
| 173
|
#CMOS AND Enable Circuit
|
100
|
|
|
|
|
|
| 174
|
#CMOS OR Enable Circuit
|
101
|
|
|
|
|
|
| 175
|
#A One-Shot NAND Gate
|
101
|
|
|
|
|
|
| 176
|
#CMOS Line Selector
|
102
|
|
|
|
|
|
| 177
|
#CMOS Data Selector
|
102
|
|
|
|
|
|
| 178
|
#CMOS R-S Flip Flop
|
103
|
|
|
|
|
|
| 179
|
#CMOS R-S Flip Flop II
|
103
|
|
|
|
|
|
| 180
|
#Set/Reset Buzzer
|
104
|
|
|
|
|
|
| 181
|
#Set/Reset Buzzer II
|
104
|
|
|
|
|
|
| 182
|
#Set/Reset Buzzer III
|
105
|
|
|
|
|
|
| 183
|
#Transistorized Toggle Flip Flop
|
105
|
|
|
|
|
|
| 184
|
#NAND Toggle Flip Flop
|
106
|
|
|
|
|
|
| 185
|
#J-K Toggle Flip Flop
|
106
|
|
|
|
|
|
| 186
|
#CMOS Astable Multivibrator
|
107
|
|
|
|
|
|
| 187
|
#CMOS J-K Flip Flop
|
107
|
|
|
|
|
|
| 188
|
#CMOS D Flip Flop
|
108
|
|
|
|
|
|
| 189
|
#CMOS D Flip Flop II
|
108
|
|
|
|
|
|
| 190
|
#R-S-T Flip Flop
|
109
|
|
|
|
|
|
| 191
|
#T Type Flip Flop
|
109
|
|
|
|
|
|
| 192
|
#CMOS Latch
|
110
|
|
|
|
|
|
| 193
|
#Shift Register
|
110
|
|
|
|
|
|
| 194
|
#Touch Switch Using NAND Gate
|
111
|
|
|
|
|
|
| 195
|
#Half Adder
|
111
|
|
|
|
|
|
| 196
|
#D-Latch
|
112
|
|
|
|
|
|
| 197
|
#2-Line to 4-Line Decoder
|
112
|
|
|
|
|
|
| 198
|
#Multiplier
|
113
|
|
|
|
|
|
| 199
|
#Dual 2-Input Multiplexer
|
113
|
|
|
|
|
|
| 200
|
#Two-Stage Frequency Divider
|
114
|
|
|
|
|
|
| 201
|
#Basic Counter
|
114
|
|
|
|
|
|
| 202
|
#Synchronous Counter
|
115
|
|
|
|
|
|
| 203
|
#Asynchronous Counter
|
115
|
|
|
|
|
|
| 204
|
#Counter with Line Encoder
|
116
|
|
|
|
|
|
| 205
|
#Divide by 4 Counter
|
116
|
|
|
|
|
|
| 206
|
#Divide by 4 Counter with Line Decoder
|
117
|
|
|
|
|
|
| 207
|
#How a Line Decoder Works
|
117
|
|
|
|
|
|
| 208
|
#Multiple Counter
|
118
|
|
|
|
|
|
| 209
|
#Binary Counter with Display
|
118
|
|
|
|
|
|
| 210
|
#Divide by 3 Counter with Display
|
119
|
|
|
|
|
|
| 211
|
#Divide by 4 Counter with Display
|
119
|
|
|
|
|
|
| 212
|
#Up/Down Counter
|
120
|
|
|
|
|
|
| 213
|
#Down Counter
|
120
|
|
|
|
|
|
| 214
|
#Decade Down Counter
|
121
|
|
|
|
|
|
| 215
|
#Decade Down Counter with Display
|
121
|
|
|
|
|
|
| 216
|
#Presettable Counter
|
122
|
|
|
|
|
|
| 217
|
#Hexadecimal Counter
|
122
|
|
|
|
|
|
| 218
|
#Octal Counter
|
123
|
|
|
|
|
|
| 219
|
#Random Access Display
|
123
|
|
|
|
|
|
| 220
|
#Decade Counter
|
124
|
|
|
|
|
|
| 221
|
#BCD Counter with Display
|
124
|
|
|
|
|
|
| 222
|
#Octal Counter with Line Decoder
|
125
|
|
|
|
|
|
| 223
|
#Octal Counter Display
|
125
|
|
|
|
|
|
| 224
|
#Decade Counter with Display
|
126
|
|
|
|
|
|
| 225
|
#Decade Counter with Display II
|
126
|
|
|
|
|
|
| 226
|
#BCD to 7-Segment Decoder
|
127
|
|
|
|
|
|
| 227
|
#Full Adder
|
127
|
|
|
|
|
|
| 228
|
#Decimal to Binary Encoder
|
128
|
|
|
|
|
|
| 229
|
#Binary to BCD
|
128
|
|
|
|
|
|
| 230
|
#Octal to BCD
|
129
|
|
|
|
|
|
| 231
|
#Hexadecimal to BCD
|
129
|
|
|
|
|
|
| 232
|
#3-Bit Shift Register
|
130
|
|
|
|
|
|
| 233
|
#VCO by NOR Gate
|
130
|
|
|
|
|
|
| 234
|
#Pulse-Delayed Circuit
|
131
|
|
|
|
|
|
| 235
|
#NAND Gate Tone Generator
|
131
|
|
|
|
|
|
| 236
|
#Transistor Timer
|
132
|
|
|
|
|
|
| 237
|
#Noise-Signal Discriminator
|
132
|
|
|
|
|
|
| 238
|
#Pulse Stretcher
|
133
|
|
|
|
|
|
| 239
|
#Bidirectional Buffer
|
133
|
|
|
|
|
|
| 240
|
#Various Invertors
|
134
|
|
|
|
|
|
| 241
|
#Electronic Switch
|
134
|
|
|
|
|
|
| 242
|
#Tone Burst Generator
|
135
|
|
|
|
|
|
| 243
|
#Digital Timer
|
135
|
|
|
|
|
|
| 244
|
#Digital Timer II
|
136
|
|
|
|
|
|
| 245
|
#Ten Count Buzzer
|
136
|
|
|
|
|
|
| 246
|
#Press First
|
137
|
|
|
|
|
|
| 247
|
#Target Range
|
137
|
|
|
|
|
|
| 248
|
#Catch the Eight
|
138
|
|
|
|
|
|
| 249
|
#SOS Alert
|
138
|
|
|
|
|
|
| 250
|
#Wheel of Fortune
|
139
|
|
|
|
|
|
| 251
|
#Leapin LEDs
|
139
|
|
|
|
|
|
| 252
|
#Pulse Number Modulation Light Dimmer
|
140
|
|
|
|
|
|
| 253
|
#Pulse Width Modulation Light Dimmer
|
140
|
|
|
|
|
|
| 254
|
#DC-DC Converter Using the CMOS Oscillator
|
141
|
|
|
|
|
|
| 255
|
#Absolute Value Amplifier
|
141
|
|
|
|
|
|
| 256
|
#Window Comparator
|
142
|
|
|
|
|
|
| 257
|
#Digital Light Dimmer
|
142
|
|
|
|
|
|
| 258
|
#A-D Converter
|
143
|
|
|
|
|
|
| 259
|
#D-A Converter
|
143
|
|
|
|
|
|
| 260
|
#Photometer with Digital Display
|
144
|
|
|
|
|
|
| 261
|
#Experiment of Electromagnetic Induction
|
144
|
|
|
|
|
|
| 262
|
#Electronic Candle
|
145
|
|
|
|
|
|
| 263
|
#Constant Current Circuit
|
145
|
|
|
|
|
|
| 264
|
#A Phony Counter
|
146
|
|
|
|
|
|
| 265
|
#Alphabet Flasher
|
146
|
|
|
|
|
|
| 266
|
#Winking LEDs
|
147
|
|
|
|
|
|
| 267
|
#Winking LEDs II
|
147
|
|
|
|
|
|
| 268
|
#Delayed Timer II
|
148
|
|
|
|
|
|
| 269
|
#Voice Level Meter
|
148
|
|
|
|
|
|
| 270
|
#Crossing Signal
|
149
|
|
|
|
|
|
| 271
|
#Octave Generator
|
149
|
|
|
|
|
|
| 272
|
#Buzzin LED
|
150
|
|
|
|
|
|
| 273
|
#Son of Buzzin LED
|
150
|
|
|
|
|
|
| 274
|
#Sound Out Timer
|
151
|
|
|
|
|
|
| 275
|
#Sound Stop
|
151
|
|
|
|
|
|
| 276
|
#Big Mouths
|
152
|
|
|
|
|
|
| 277
|
#Light or Sound
|
152
|
|
|
|
|
|
| 278
|
#Be Your Own Multivibrator
|
153
|
|
|
|
|
|
| 279
|
#Anticipation
|
153
|
|
|
|
|
|
| 280
|
#Set/Reset Match
|
154
|
|
|
|
|
|
| 281
|
#Circuit Continuity Checker
|
154
|
|
|
|
|
|
| 282
|
#Acoustic Ohmmeter
|
155
|
|
|
|
|
|
| 283
|
#Audio Signal Tracer
|
155
|
|
|
|
|
|
| 284
|
#Audio Signal Generator
|
156
|
|
|
|
|
|
| 285
|
#Metal Detector
|
156
|
|
|
|
|
|
| 286
|
#Rain Detector
|
157
|
|
|
|
|
|
| 287
|
#Burglar Alarm
|
157
|
|
|
|
|
|
| 288
|
#Temperature-Sensitive Audio Amplifier
|
158
|
|
|
|
|
|
| 289
|
#Water Level Detector
|
158
|
|
|
|
|
|
| 290
|
#Battery Checker
|
159
|
|
|
|
|
|
| 291
|
#Conductivity Tester
|
159
|
|
|
|
|
|
| 292
|
#IC Oscillator/Component Tester
|
160
|
|
|
|
|
|
| 293
|
#Voltage Drop Alarm
|
160
|
|
|
|
|
|
| 294
|
#Transistor Checker
|
161
|
|
|
|
|
|
| 295
|
#Current Shut-Down Circuit
|
161
|
|
|
|
|
|
| 296
|
#Logic Checker
|
162
|
|
|
|
|
|
| 297
|
#Logic Checker II
|
162
|
|
|
|
|
|
| 298
|
#Three-Step Water Level Indicator
|
163
|
|
|
|
|
|
| 299
|
#Temperature Alarm
|
163
|
|
|
|
|
|
| 300
|
#Function Generator
|
164
|
|
|
|
|
|