jet engine sound generator

Posted on Feb 5, 2014

This jet engine sound generator circuit is based on the sound generator IC HT2844P from Holtek Semiconductors. This particular IC can make four sounds namely low speed sound of jet engine, high speed sound of jet engine, missile sound and machine gun sound. Each of these sounds can be activated by connecting the pins 12, 13, 14and 15 to ground by

jet engine sound generator
Click here to download the full size of the above Circuit.

using the respective push button switches. Resistor R3 can be used for manually increasing or decreasing the speed. LED D1 gives a visible indication of the sound.

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