Melody Generator Circuit using UM66


Posted on Feb 6, 2014

This circuit is a circuit diagram generator melody. This circuit controlled by the IC UM66. The UM66 CMOS IC designed for use in the call bell, telephone, and toys. Has a built in ROM that is programmed to play music. The device has a very low power for consumption. Thanks melody technology. The CMOS will be available in pin3 of UM66 and here is r


Melody Generator Circuit using UM66
Click here to download the full size of the above Circuit.

einforced by using transistors Q1 and Q2 to drive the speaker. UM66 is a fun music generator IC that worked at 3V supply voltage. The following is a schematic drawing: 3V supply is required given through zener regulator. the out put is taken from pin No1 and given to the push pull amplifier to drive low impedance speakers lowd. An amplifier before pushpull amplifier can be used for noise and improve decrese out put. UM66 is a 3-pin IC Pakage just looks like a transistor BC 547.




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