# Super Simple Oscillator Mixing and Filtering **URL:** \ **Category:** DIY STUFF\ **Created:** [December 4, 2021, 10:51am UTC](https://lookmumnocomputer.discourse.group/t/super-simple-oscillator-mixing-and-filtering/4335 "2021-12-04T10:51:45Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![Caustic](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/caustic/32/15588_2.png) [@Caustic](https://lookmumnocomputer.discourse.group/u/Caustic)\ **Post date:** [December 4, 2021, 7:43pm UTC](https://lookmumnocomputer.discourse.group/t/super-simple-oscillator-mixing-and-filtering/4335/5 "2021-12-04T19:43:59Z")
You can make a mixer with a summing amp. Here’s my writeup and bom for the super simple mixer. > [@LMNC Super Simple Mixer \[Strip Board Layout + BOM\]](https://lookmumnocomputer.discourse.group/t/lmnc-super-simple-mixer-strip-board-layout-bom/97): > > Layout credit: LMNC (Sam Battle) Transcription of instructions: CGS dc mixer in its simplest form basically. I use this circuit in many things. Including the bruel and kjaer fixed filter bank, who’s video I made this strip-board layout for. Remember if you are using a plastic panel, make sure to ground all jack sockets Potentiometers are facing up. Pin 2 of the TL072 is where all the inputs go into, you can actually have as many inputs as you want (in the bruel and kjaer fixed filter bank video… --- _[View the full topic](https://lookmumnocomputer.discourse.group/t/super-simple-oscillator-mixing-and-filtering/4335)._