Elenco Upgrade Kit SC100 to SC750 - Manual (Page 60)

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OBJECTIVE: To build a high pitch bell.
Build the circuit shown and press the press switch (S2). The circuit
starts to oscillate. This generates the sound of a high pitch bell.
Project #266
Steamboat Whistle
OBJECTIVE: To build a steamboat whistle.
Using the circuit in project #265, connect the 0.02 μF capacitor (C1)
across the whistle chip (WC). Press the press switch (S2). The
circuit now generates the sound of a steamboat.
Project #267
Steamship
OBJECTIVE: To generate the
sound of a steamship.
Using the circuit in Project #265,
connect the 0.1
μF capacitor (C2)
across the whistle chip. Press the
press switch (S2). The circuit now
generates the sound of a steamship.
Project #268 Light NOR Gate
OBJECTIVE: To build a NOR gate.
Build the circuit on the left. You will find that
the lamp (L1) is on when neither the slide
switch (S1) NOR the press switch (S2) are
on. This is referred to as an NOR gate in
electronics and is important in computer
logic.
Example:
If neither condition X NOR
condition Y are true, then execute
instruction Z.
Project #265 High Pitch Bell