October 2018
Beginner
80 pages
1h 30m
English
Content preview from A Beginner's Guide to Circuits
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1THE STEADY-HAND GAME
THIS CIRCUIT WILL SOUND A BUZZER IF YOU LET THE RING TOUCH THE WIRE.
THE CIRCUIT DIAGRAM
THE PARTS LIST
PART |
DESCRIPTION |
Buzzer |
Buzzer that works with 9 V battery |
Steel wire |
Bare and stiff wire, like a clothes hanger |
Metal ring |
Bare metal ring, like a soda can ring |
An old pen |
Old pen for mounting the metal ring |
Tape |
Electrical tape is best, but any tape should work |
ABOUT THE CIRCUIT
You might have grown up playing a game called Operation, in which you play a surgeon who uses tweezers to remove silly ailments ...
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