![](https://s3images.coroflot.com/user_files/individual_files/613050_hsmjj052hswixdjaxu2zqfyul.gif)
Googling for a random LFO brought me to the Ken Stone schematic which I have used as a jumping off point for my own design. I have chosen to run my own CD40106 inverter IC from +15v to VDD instead of -15v to VSS as suggested in this schematic. I've also opted to use a TL071 op amp.
![](https://s3images.coroflot.com/user_files/individual_files/original_613050_i5PQbaiihIjzRFtGF0pm2BGrf.jpg)
CD40106 Data Sheet with all the specs. This IC will be used to generate a pseudo random square wave oscillation via a feedback loop.
View PDF
View PDF
![](https://s3images.coroflot.com/user_files/individual_files/613050_9jsjjljgo4usmoi3okecgn8_t.jpg)
An example of the expected wave shapes that will be produced by the output of this module. Both smooth and square wave output will add a nice complement to the functionality of this module.
![](https://s3images.coroflot.com/user_files/individual_files/613050_5_5vxrovmvoriqlj9pqyotonv.jpg)
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