Simple Audio Oscillator

 



Schematic of circuit

If you want a simple audio alarm , this circuit will be useful . almost any transistor will work , R1 and C1 will vary the tone .A 0.5 Watts / 8 Ohms speaker is offer .

Component Value Qty

Resistor

5K

01

Capacitor

0.02uF

01

Transistor

2N2222

01

Transistor

2N3638

01

Reference : " Zeus Electronics "

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Last Updated : February 15, 2002

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