Project #pc63 electronic sound pc – Elenco Upgrade Kit SC100 to SC750 User Manual

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Project #PC63

Electronic Sound PC

OBJECTIVE: To view the output of an oscillator circuit.

Build the circuit and try the settings shown. Press the press
switch to lower the frequency of the signal by increasing the
capacitance in the oscillator. You can replace the 0.1mF capacitor
C2 with the 10mF capacitor C3 (“+” on the right) to further lower the
frequency of the tone. You may try other settings to zoom in or look
at the frequency spectrum.

Settings

Project #PC64

Replace the 100KW resistor R5 with the 10KW resistor R4, place the
0.1mF capacitor back in the circuit as before. Now you change the
frequency by changing the resistance in the oscillator.

Electronic Sound

PC (II)