Musical Doorbell Circuit Diagram

Musical Doorbell Circuit




Musical Doorbell Circuit Diagram

This musical doorbell circuit uses UM3481 A series IC.  It is intended for applications such as toys, door bells, music boxes, melody clock/timers and telephones. The UM3481A is designed to play the melody according to the previously programmed information and is capable of generating 16 songs with 3 instrument effects: piano, organ and mandolin.

Musical Doorbell Circuit Diagram

PARTS LIST
R1 82kΩ
R2 180kΩ
C1 47pF
C2 2.2µF 16V
Q1 2SC828
LS1 4Ω 0.5W Speaker
PB1 Push to On Switch
IC1 Um3481A, UM3482A or UM3483A

This circuit has very  low stand-by current. C1 and R1 act as the timing components for the built in oscillator. This IC also includes a preamplifier which provides a simple interface to the driver circuit. Q1 is used for driving the speaker.

Um3481A, UM3482A and UM3483A song list

Song List

When you push the PB1 switch, playing one song and it is auto stop.




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14 comments on “Musical Doorbell Circuit Diagram
  1. Michael says:

    I made something similar few years ago but it broke after two days because I left it where my dog can get it and this is how my doorbell fun ended 🙂

  2. zafar abbas says:

    I am a learner and really enjoying your projects.

  3. kiran says:

    dear sir,
    please send me a more simple diagram but the sound should be more because i want to make car reverse horn.please send me fast.

    thankyou,
    from kiran

  4. APPANNA says:

    HARE KRISHNA
    I WANT TO DESIGN REVERSE HORN WITH ISKCON TUNE CAN YOU HELP ME

  5. Angie says:

    does it matter if the resistor is a .5 or 1 watts or if the speaker is 8 ohms? if it does, where can i get a 4 ohm speaker and the Um3481A, UM3482A or UM3483A?

  6. vidyasagar kalla says:

    I want user music in my doorbell what to do ?????

  7. gaurav gothi says:

    Michael :
    I made something similar few years ago but it broke after two days because I left it where my dog can get it and this is how my doorbell fun ended

    hiiiii

  8. Sabry says:

    I HAVE TO THANK YOU

  9. kavi says:

    can i program any songs/tune of my own choice to play in the bell?????if so could you please help me out
    thanku

  10. TRUPTI says:

    can i add my choice of song in IC UM 3481 series?

  11. kulwant says:

    plz tell m whts the price of this ic.
    where it is available.
    can anybdy snd m a sample of this ic

  12. krishna says:

    it not solwed

  13. Elijah says:

    I love everything about your site. Please i need the three musical IC’S . How can i get it and how much is each. Thanks. Elijah.

  14. abhi says:

    where do i get these ic’s

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