Alarm Recorder; Alarm Recorder (Ii); Machine Gun Recorder - Elenco Electronics Projects 306-511 Instruction Manual

Project #428
Project #429

Alarm Recorder (II)

OBJECTIVE: Record the sound from the alarm IC.
Use the circuit in project #428. Remove the 2-snap from A1 to B1. Turn
on the switch (S1). The first beep indicates that the IC (U6) has begun
recording. When you hear two beeps, turn off the switch (S1), press the
switch (S2), and the new recording plays.

Alarm Recorder

OBJECTIVE: To record the sound from the alarm IC.
The circuit records the sound from the alarm IC (U2) into the recording
IC (U6). Turn on the switch (S1). The first beep indicates that the IC
has begun recording. When you hear two beeps, the recording has
stopped. Turn off the slide switch (S1) and press the switch (S2). You
will hear the recording of the alarm IC before each song is played.
The lamp (L2) is used to limit current and will not light.
Project #430

Machine Gun Recorder

OBJECTIVE: To record the sound of a machine gun.
Use the circuit in project #428. Move the 2-snap from A1 - B1 to 3A -
3B. Turn on the switch (S1). The first beep indicates that the IC (U6) has
begun recording. When you hear two beeps, turn off the switch (S1),
press the switch (S2), and the machine gun sound plays.
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