beautypg.com

Project #pc66 drawing resistors pc, Project #pc67 electronic noisemaker pc – Elenco Upgrade Kit SC300 to SC750 User Manual

Page 208

background image

-55-

Use the circuit from the Drawing Resistors project #516, but
connect the PC-interface cable across the speaker. Use a pencil to
draw the shapes shown in projects #516-518, as per the directions
given in those projects. Use Winscope to see how the waveforms
and frequency spectrums vary as you move the jumper wires
across the shapes to change the sounds. A sample is shown here.

Next, place the loose ends of the jumper wires into a cup of water, as
per project #519. The waveforms and frequency spectrum you see
will be similar to the resistors you drew, just as the sounds are similar.

Project #PC66

Drawing Resistors PC

OBJECTIVE: To draw your own resistors.

Settings

Settings

Build the circuit and try the settings shown. Flip on the slide switch
and press the press switch a few times while moving the adjustable
resistor control around.

View the waveform and frequency

spectrum.

Project #PC67

Electronic Noisemaker PC

OBJECTIVE: To view the output of an oscillator circuit.