Project listings – Elenco Electronics 202 User Manual
Page 15
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Project #
Description
Page #
205
Motor Rotation
88
206
Motor Delay Fan
88
207
Motor Delay Fan (II)
88
208
High-pitch Bell
89
209
Steamship
89
210
Wet Finger Detector
89
211
Motor-activated Burglar Alarm
90
212
Light-activated Burglar Alarm
90
213
Spacey Fan
90
214
LED Fan Rotation Indicator
91
215
Space War Sounds with LED
91
216
Photoresistor Control
92
217
Sound Mixer Fan Driver
92
218
Electric Fan Stopped by Light
93
219
Motor & Lamp
93
220
Start-stop Delay
94
221
Mail Notifying System
94
222
Mail Notifying Electronic Bell
95
223
Mail Notifying Electronic Lamp
95
224
AM Radio with Transistors
95
225
Lasting Doorbell
96
226
Lasting Clicking
96
227
Delayed Action Lamp
96
228
Delayed Action Fan
96
229
Adjustable Time Delay Lamp
97
230
Adjustable Time Delay Fan
97
231
Transistor Fading Siren
97
232
Fading Doorbell
97
233
Adjustable Time Delay Lamp (II) 98
234
Adjustable Time Delay Fan (II)
98
235
Watch Light
98
236
Delayed Bedside Fan
98
237
This OR That
99
238
This AND That
99
Project #
Description
Page #
239
Neither This NOR That
100
240
NOT This AND That
100
241
Music AND Gate
101
242
Lamp, Speaker & Fan in Parallel 101
243
Light-controlled LED (II)
102
244
AM Radio
102
245
Transistor AM Radio
103
246
Antenna Storing Energy
103
247
Back EMF
104
248
Flashing Laser LED’s with Sound 104
249
Electromagnet Delayer
105
250
Photoresistor Paper Clip Suspension 105
251
Electromagnetism
106
252
Electromagnetism & Compass 107
253
Electromagnet Storing Energy
107
254
Electromagnet Tower
108
255
Paper Clip Compass
108
256
Paper Clip Oscillator (II)
109
257
Paper Clip Oscillator (III)
109
258
Paper Clip Oscillator (IV)
110
259
Paper Clip Oscillator (V)
110
260
Oscillating Compass
110
261
Siren Paper Clip Vibrator
111
262
Alarm Paper Clip Vibrator
111
263
Machine Gun Paper Clip Vibrator 111
264
Alarm Vibrator w/ LED
112
265
Alarm Vibrator w/ LED (II)
112
266
Motor Oscillator
113
267
Motor Oscillator (II)
113
268
Motor Oscillator (III)
113
269
Two-speed Motor Lights
114
270
Two-speed Motor Lights-Sound 114
271
Short-time Sound
115
272
Slow Light Dimmer
115
Project #
Description
Page #
273
Fading Bomb Sound
116
274
Fading Music Sound
116
275
Fading Music Sound (II)
116
276
Sound & Lights
117
277
Music with Timer
117
278
Motor Tone Generator
118
279
Motor Tone Generator (II)
118
280
Motor Tone Generator (III)
118
281
Motor Tone Generator (IV)
118
282
Turn Off Timer
119
283
Turn Off Timer (II)
119
284
LED & Bulb Timer
119
285
Alarm Timer
120
286
Alarm Timer (II)
120
287
Alarm Timer (III)
120
288
Space War Timer
121
289
Alarm Speed Adjuster
121
290
The SCR
122
291
Light-controlled SCR
122
292
Light-controlled SCR (II)
122
293
Light-controlled SCR (III)
122
294
LED Control Motor
123
295
LED Control Motor (II)
123
296
Light Oscillator
124
297
Sound, Light & Motor Stepper Circuit 124
298
Blink & Beep
125
299
Blink & Beep (II)
125
300
Simple Rectifier (II)
125
301
Alarm Motor
126
302
Alarm Light
126
303
Mirror Circuit
126
Project Listings