This circuit puts your manual skills to a lively test. As shown in the schematic
diagram, the circuit has a smalloop that you must navigate around a wire.
The object of the game is to guide the loop over the weaving course without
touching the wire.
A slight misdjudgement or quiver of the hand and the ring will contacthe
weaving wire, enabling the circuit that will produce anoticeable (but inoffensive) shock!
The skill required to play the game depends largely on the size of the loop
and the degree of twist and turn in the wire.
Scoring is a matter of counting the number of times the player is atfected by
a shock!The person with the lowest total (or no touch) wins.
The circuit is powered from a D cell, as the current drain is high when the loop
touches the wire. When not in use, don't leave the ring and wire together.This
will cause the battery to run down in a short time.
A circuit diagram of the device is shown in Figure l.The heart of the project
is the transformer that converts 1.5 VDC into high-voltage pulses up to 400
volts.
A mechanical view of the mounting is shown in Figure 2.
All the components can be housed in a small plastic box. Wires to the loop
and weaving wire should be 2 or 3 feet long to prevent pull-outs when the
player is struck.
Observe the isolation between the points where the player touches and the
weaving wire. The two wires that connect X2 should be twisted.
T1 is any small transformer with a 117 VAC primary and secondary coil ranging between 3and 9V. Current drain can range from 100 to 500 mA when the
wire touches the loop.
Parts List -TestYour Nerves
T1 - Any transformer with a 117 VAC coil and low-voltage
secondary - see text
81 -1.5V-Dcell
X1 - Loop - see text
X2 - Weaving wire - see text
No comments:
Post a Comment