![operational amplifier - Generation of triangle wave at 15KHz frequency - Electrical Engineering Stack Exchange operational amplifier - Generation of triangle wave at 15KHz frequency - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/cCRUK.png)
operational amplifier - Generation of triangle wave at 15KHz frequency - Electrical Engineering Stack Exchange
![operational amplifier - How does this circuit produce a triangular-wave output? - Electrical Engineering Stack Exchange operational amplifier - How does this circuit produce a triangular-wave output? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/8Zt6u.png)
operational amplifier - How does this circuit produce a triangular-wave output? - Electrical Engineering Stack Exchange
![oscillator - Building a triangle wave generator using two LM358 with single supply operation - Electrical Engineering Stack Exchange oscillator - Building a triangle wave generator using two LM358 with single supply operation - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/CwSVB.png)
oscillator - Building a triangle wave generator using two LM358 with single supply operation - Electrical Engineering Stack Exchange
![Function Generator Circuit Concepts, Part 1: First-Generation Function Generators (FGs) - Planet Analog Function Generator Circuit Concepts, Part 1: First-Generation Function Generators (FGs) - Planet Analog](https://www.planetanalog.com/wp-content/uploads/images-common-planetanalog-2015-11-564092-Image-1.jpg)