Phone ringer circuit

This is simple phone ringer circuit using IC 4060.
Can run it by 5 to 12v and its power consumption is very low, lower than 10mA.
You can use any other PNP transistor rather than S9012.

Parts list:
IC 4060
Transistor S9012(3pcs)
Capacitor 3.3nF
Resistor 13k (3pcs)
Resistor 100k
Potentiometer 100k
Buzzer

Phone ringer circuit
Location: Iraq

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