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. This door bell circuit can power up using 1.5v battery cell or two 1.5v battery cells.
| 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 door bell 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.
When you push the PB1 switch, playing one song and it is auto stop.
Please send your ideas, which are very important for our success…
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 🙂
I am a learner and really enjoying your projects.
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
HARE KRISHNA
I WANT TO DESIGN REVERSE HORN WITH ISKCON TUNE CAN YOU HELP ME
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?
I want user music in my doorbell what to do ?????
hiiiii
I HAVE TO THANK YOU
can i program any songs/tune of my own choice to play in the bell?????if so could you please help me out
thanku
can i add my choice of song in IC UM 3481 series?
plz tell m whts the price of this ic.
where it is available.
can anybdy snd m a sample of this ic
it not solwed