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How to Make a Simple Musical Greeting Card

Last Updated on June 6, 2025 by Admin Leave a Comment

UM36 melody songs compressed

It is fairly simple to construct a ‘singing’ melodious greeting card, as explained in the following article. You can replicate this greeting card design through matching chips which carry about […]

Filed Under: Audio and Amplifier Tagged With: Card, Greeting, Musical, Simple

Musical Doorbell Circuit with Many Melodies – Christmas Carols, Big Ben, and More

Last Updated on June 6, 2025 by Admin 2 Comments

musical doorbell

As seen in the diagram the main stages of the circuit is built-in inside the musical chip in the form of oscillator, frequency divider, drive ROM, a ROM having 512 […]

Filed Under: Audio and Amplifier Tagged With: Carols, Christmas, Doorbell, many, Melodies, Musical

Programmable Musical Organ Circuit

Last Updated on January 10, 2018 by Admin Leave a Comment

Scan

In this post we are going to construct a musical organ circuit whose musical tone can be programmed by adjusting 10 pre-sent resistors in the circuit and the speed of […]

Filed Under: Hobby Projects Tagged With: Musical, Organ, Programmable

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