FK284 - Three songs (jingle bells, it's a small world, happy birthday)

The three digitized music song are held permanently in an IC MB95F274.

The song can be changed by pressing one of the buttons.                                                     

A transistor output amplifier drives the supplied 8 ohm 0.25W for a demanding sound suitable for toy, alarm, small bell etc.

Technical specifications:
- Power supply : 3-4.5VDC.
- Electric current consumption at 3VDC : 85mA (working), 60mA (standby).
- Electric current consumption at 4.5VDC : 105mA (working), 80mA (standby).
- There are three switches for select the music song (Jingle Bells, It's a Small World and Happy Birth Day).
- IC board dimension : 3,49 x 2,92 cm.