A very simple audio oscillator electronic project can be designed using two transistors and some other electronic parts . As you can see in the circuit diagram , this audio tone oscillator circuit require a 9 volts DC power supply .
R1 and C1 components can be a variable type . By modifying values of R1 and C1 will vary the tone .
For this audio oscillator circuit you can use almost any transistor . To power this audio oscillator you’ll need to use a 9 volt battery or a 9 volt DC power supply .
![Simple audio oscillator electronic project](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_u5L1knJgaSszTgpapy4IQ1ZKI_6DwYnQFWBA7o_gQGrFWQCN8qn2dKTo2_LoxnQGo8jO9zjE7JbVFtdJUdEJmk4sr3guf6g8Ym42nA2Xja_xmMJU4f2qwGOviIuZ4EO-RfIt7a=s0-d)
R1 and C1 components can be a variable type . By modifying values of R1 and C1 will vary the tone .
For this audio oscillator circuit you can use almost any transistor . To power this audio oscillator you’ll need to use a 9 volt battery or a 9 volt DC power supply .