555 IC Tone Burst Generator

An excellent tone burst generator can be made using 556 Dual Timer. We can connect the first half as a one-shot and the second half as an oscillator. The oscillator turns on because the pulse established by the one-shot turns, allowing a burst to be generated. Here is the circuit diagram:

Tone Burst Generator circuit schematic diagram

[Source: Philips Semiconductors Application Note]

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