Sound Bell Circuit is a series of electronic tones or sounds arranged in such a way that it contains rhythm, song, and harmony. In this world almost everyone loves music. No wonder when the music is applied to many devices used by humans, one of them is the bell. There's even a bell that sounds human speech. But on this occasion we will discuss about the bell that can produce or make a sound of music / tone. Sound Bell Circuit is perfect as an exercise for electronics enthusiasts who are still beginners. But for the senior is not prohibited anyway to make it, either made just for a toy or indeed to be a doorbell.
Picture schematic of musical sound bell circuit :
Component:
Component:
R1 = 100K
R2 = 3K3
R3, R4, R5, R6, R7 = 47K
R8 = 150K
C1 = 33pF
C2 = 10nF
C3 = 10nF
C4 = 10nF
C5 = 0.02uF / 6V
C6 = 0.047uF / 6V
C7 = 100uF / 6V
C8 = 1000uF / 6V
IC = MN6221
TR1 = FCS 9012
TR2 = FCS 9013
S1, S2 = Slide Switch
Speaker = Impedance 4 Ohm
Sound bell circuit like the above scheme is a series of bells that can produce some music sounds that are tailored to its IC type. This circuit is perfect for door bell. The basic component is an IC type MN 6221 which has 16 pins / feet and is amplified by two transistor type FCS 9012 and FCS 9013. Okay, good work and good luck.