Elenco Projects 512-692 - Manual (Page 78)

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Project #675
OBJECTIVE: To show how electricity can lift things using magnetism.
High Frequency Vibrator
Project #676
OBJECTIVE: To show how electricity can lift things using magnetism.
High Frequency Vibrator (II)
Take a paperclip and straighten it out, bend it in half, and place it
into the electromagnet (M3) center. Connect the electromagnet
to points A & B with the jumper wires and hold it about 1 inch
above the table. Slide the adjustable resistor (RV) control lever
around slowly, you will hear a clicking sound from the relay (S3).
Adjust the electromagnet height and resistor control lever until
the paperclip vibrates up and down on the table. It will vibrate at
a fast rate but will not move very high. Usually this works best
with the electromagnet about one inch above the table and the
resistor control about mid-way to the right side, but your results
may vary. See how high you can make the paperclip bounce.
Adjust the electromagnet height and resistor control lever to
change the height and frequency of the vibration.
Straighten and
bend paperclip
Take a paper clip and straighten it out, bend it in half, and place it
into the electromagnet (M3) center. Connect the electromagnet to
points A & B with the jumper wires and hold it about 1 inch above
the table. Slide the adjustable resistor (RV) control lever around
slowly, you will hear a clicking sound from the relay (S3) and
speaker (SP).
Adjust the electromagnet height and resistor control lever until the
paper clip vibrates up and down on the table. It will vibrate at a fast
rate but will not move very high. Usually this works best with the
electromagnet about one inch above the table and the resistor
control about mid-way to the right side, but your results may vary.
See how high you can make the paper clip bounce.
Adjust the electromagnet height and resistor control lever to
change the height and frequency of the vibration.
Straighten and
bend paper clip