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Programmable Nokia RTTTL Player

Programmable Nokia RTTTL Player
This circuit is an easy way to play monophonic music sounding from those good old Nokia 3310 cellphones. The circuit can be used in applications like doorbells, phone ringers, bike horns or any other alarm circuit!
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

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