Elenco Projects 102-305 - Manual (Page 47)

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Project #234
OBJECTIVE: Make and play the electronic game of “Quiet
Zone”.
Use the circuit from project #233, but place three (3) 2-snap wires
(“shorting bars”) under paper as shown on left.
Setup: Player 1 sets the “Quiet Zone” by placing three (3) shorting
bars under the paper on row A, B, C, or D, leaving only one open.
Player 2 must NOT know where the shorting bars are located under
the paper.
Both Player 1 and Player 2 are given 10 points. The object is for Player
2 to guess the location of the “Quiet Zone” by placing his shorting bar
at positions W, X, Y, or Z. In the drawing on the left Player 1 set up the
“Quiet Zone” at position “C”. If Player 2 places his shorting bar across
“Z” on the first try, the sounds played mean he has not found the “Quiet
Zone” and he loses 1 point. He has 3 tries to find the zone on each
turn. Each time sounds are made he loses a point.
Player 2 then sets the A, B, C, D side and Player 1 starts searching.
Play continues until one player is at zero points and makes sound
during that players turn.
Enhanced Quiet Zone Game
Project #235
OBJECTIVE: To show how capacitors store and release
electrical charge.
Turn on the slide switch (S1) for a few seconds, then turn it off. The
green LED (D2) is initially bright but goes dim as the batteries (B1)
charge up the 470
μ F capacitor (C5). The capacitor is storing electrical
charge.
Now press the press switch (S2) for a few seconds. The red LED (D1) is
initially bright but goes dim as the capacitor discharges itself through it.
The capacitor value (470 μ F) sets how much charge can be stored in
it, and the resistor value (1k Ω ) sets how quickly that charge can be
stored or released.
Capacitor Charge &
Discharge
Shorting Bar
for A, B, C,
or D.
Paper Sheet to
hide position of
shorting bar.
Shorting Bar for
W, X, Y, or Z.