Musical Doorbell Circuit Diagram. This is a nice sounding door bell with a variety of tunes. This featured circuit is a musical doorbell.
Connect the input wires on the transformer to the source circuit using the black to black white to white and ground to green method. When i got it working it sounded terrible distorted like an amp cranked up to 11. The schematic diagram alongside shows a straightforward design of an electronic musical doorbell basically comprising three important stages.
The design is a modified type of doorbell.
Instead of having a common buzz sound for doorbell a musical sound will be produce which is more pleasing to hear. As pointed above at the heart of the circuit is a very old melody generator chip the bt66t ic2. The design is a modified type of doorbell. This featured circuit is a musical doorbell.