# Controls

- [Introduction to control signals and blocks](/spincad-designer/blocks/controls/introduction-to-control-signals-and-blocks.md): Oct 8, 2022 at 9:00 AM
- [Two-stage](/spincad-designer/blocks/controls/two-stage.md)
- [Invert, Power, Two-Stage, and Vee](/spincad-designer/blocks/controls/invert-power-two-stage-and-vee.md)
- [Ratio](/spincad-designer/blocks/controls/ratio.md): The ratio control is handy to use when you want two things to be inversely proportional to each other.  As one goes up, the other goes down.
- [Scale/Offset](/spincad-designer/blocks/controls/scale-offset.md)
- [Clip and Tremolizer](/spincad-designer/blocks/controls/clip-and-tremolizer.md)
- [Envelope](/spincad-designer/blocks/controls/envelope.md)
- [Slicer and Smoother](/spincad-designer/blocks/controls/slicer-and-smoother.md): Make a versatile tremolo patch using these two blocks
- [Tap Tempo](/spincad-designer/blocks/controls/tap-tempo.md)