Flashing 8; Flashing 8 With Sound; Musical Space War - Elenco Electronics Snap Circuits Instruction Manual

Project #396
Project #398
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Flashing 8

OBJECTIVE: Use the Alarm IC as a switch to flash the number "8".
Turn on the switch (S1) and the number 8 starts flashing.
segments are powered by connecting them to the IC's (U2) output.
Project #397

Flashing 8 with Sound

OBJECTIVE: To build a circuit so you can hear and see the 8 flash.
Use the circuit in project 396. Connect the speaker (SP) across points
X & Y to see and hear the IC's (U2) output.

Musical Space War

OBJECTIVE: To combine the sound effects of the recorder and
space war integrated circuits.
Turn on the switch (S1) and you hear space war sounds as the lamp
(L1) flashes. If you wave your hand over the photo resistor (RP), the
sound changes. If you keep the photo resistor covered, then the
sound will stop.
Press the switch (S2) and you will hear music in addition to any space
war sounds that are playing. Press the switch (S2) again to change
the music. You will also hear any recording you had made previously
with project 386.
Replace the lamp with the 100Ω resistor (R1) to reduce the loudness.
The