Elenco Computer Inteface for Snap Circuits&reg User Manual download pdf (Page 35)

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Project #PC21

Buzzing in the Dark PC

OBJECTIVE: To build a circuit that buzzes.

Build the circuit shown. If continuing from the previous experiment

then close the Winscope program and run it again, to reset the

settings. Set Winscope to the settings shown below and click on

the On-Line button to activate. A sample waveform is shown here.

The actual waveform will vary depending on how much light is

shining on the photoresistor (snap part RP). If you cover the

photoresistor then the circuit shuts off.

Settings

The waveform above is weak and

erratic, so replace the 0.02mF

capacitor (snap part C1) with the

0.1mF capacitor. A sample of the

new waveform is at left, with the

same settings. It is lower in

frequency but higher in amplitude.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 59 60

CI-73 - READ THIS FIRST 2
WARNING: 3
PROJECTS PC1-PC3 SHOW 4
HOW TO USE THE MAIN 4
FUNCTIONS OF WINSCOPE SO 4
DO THEM FIRST! 4
This waveform . . 5
Microsoft Word 6
Project Listings 7
Project #PC1 8
Pitch PC 8
Project #PC2 12
Screaming Fan PC 12
Without Storage Mode 13
With Storage Mode 13
Storage mode 14
Settings 14
Project #PC3 15
Hissing Foghorn PC 15
Light & Sounds PC 17
Project #PC4 17
Sample Frequency Spectrum 19
Project #PC9 20
Light & Sounds PC (VI) 20
Project #PC10 20
Modulation 20
Project #PC11 22
Filtering 22
Project #PC12 23
AM Radio PC 23
On-Line button 1:1 mode 24
Project #PC13 25
Space War PC 25
Project #PC14 26
Microphone 26
Project #PC15 28
Speaker Microphone 28
Project #PC16 29
Symphony of Sounds PC 29
Project #PC17 30
Doorbell PC 30
Project #PC18 31
Periodic Sounds PC 31
Project #PC19 32
Lasting Doorbell PC 32
Project #PC20 34
Space War Flicker PC 34
Project #PC21 35
Buzzing in the Dark PC 35
Project #PC22 36
Trombone PC 36
Project #PC23 38
Sound Pulse 38
Oscillator PC 38
Project #PC24 39
High Pitch Bell PC 39
Project #PC28 41
Old-Style Typewriter PC 41
Project #PC29 42
Transistor Fading Siren PC 42
Project #PC30 42
Fading Doorbell PC 42
Project #PC31 43
Police Siren Amplifier PC 43
Project #PC32 43
Music Amplifier PC 43
Project #PC33 44
Space War Amplifier PC 44
Project #PC34 44
Adjustable Tone Generator PC 44
Project #PC39 46
Transistor AM Radio PC (II) 46
Project #PC40 46
Playback & Record PC 46
Project #PC41 47
Power Amplifier 47
Playing Music IC 47
Project #PC42 48
Music Meter PC 48
Project #PC43 49
Oscillation Sounds PC 49
Project #PC47 50
Oscillator Sounds PC 50
Project #PC49 50
Whistle Chip Sounds PC 50
Project #PC53 51
Bird Sounds PC 51
Project #PC55 52
Electronic Cat PC 52
Project #PC59 53
Variable Oscillator PC 53
Project #PC63 54
Electronic Sound PC 54
Project #PC65 55
Siren PC 55
Project #PC66 56
Drawing Resistors PC 56
Project #PC67 56
Electronic Noisemaker PC 56
Project #PC69 57
Project #PC71 58
Space War Alarm Combo PC 58
Space War Music Combo PC 59
Project #PC73 59
Sound Mixer PC 59
Project #PC72 59
IMPORTANT NOTICE 60

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Elenco Computer Inteface for Snap Circuits&reg User Manual Page 35

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