Making a Simple Eurorack Mixer

Designing and building a simple modular synth mixer with a low parts count.
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You can find the schematic, stripboard layout, BOM and panel template here: sandelinos.me/diy/Simple-Mixer/
For more projects like this check out my website: sandelinos.me
Contact me: sandelinos.me/contact

[@goodforage]

This is precisely why eurorack is a great thing to be a part of. Well done sir 💪👏👏👏😂🤣🥰💋👌😃

[@DollysplitBand]

Duuuuude I loved your explanation. I have subscribed. That panel drilling process made me a little anxious though. Drill out your mounting holes first, then screw the panel down to some spare wood stock. it'll save all that warping and shuffling about. Also, you can use another block of wood to apply even pressure to the parts of the panel you're not drilling, not only saving the piece but saving your hands. Looking forward to seeing more!

[@nathanfinnegan522]

Gloves help prevent sliced hands.

[@PnPModular]

The explanation and details you provide in this video are absolute gold thank you for making and all your help ❤

[@victorman2227]

Great video, thanks for the clear explanation.

[@MattBaker1965]

Nice build. I hate using steel sheet as it leaves so many sharp edges, you take care while drilling! I bought a 2m length of Aluminium sheet 25mm wide for £10 which should give me about 14 front panels and no sharp edges. I have also 3D Printed front panels but the PLA material gets brittle after a year. Great video keep building modules :)

[@DollysplitBand]

Do you have any experience with ABS panels? I've been thinking about making a few.

[@KeritechElectronics]

Nice build and a great introduction to audio electronics :)

[@critbyte]

really informative, thanks for sharing!

[@moltenisfrozen]

Thanks, i finally learnt how op amps work!

[@michaelhoste_]

Nice explanation of a simple but functional circuit. The build made me a bit edgy - I hope you won't mind me saying but I think you should be feeding a little more solder and then keeping the iron on the work until it has completely flowed throughout. Then remove the iron smartly. You were kinda dabbing at them a bit. I guess you won't be throwing them at the wall but it still makes me anxious lol. I subscribed though because the circuits look good and you explain them well.

[@craig_z]

I love this video.

[@beatrute2677]

nice build man.

[@bobjames2906]

you da best

[@maxwellessel5561]

Please how do I add a microphone?

[@kishorhaunskar7366]

I think no.1 D Y I👌👌👌👍

[@tedpower]

Very helpful video, thanks! Could you share the KiCad files and the types of components you used?

[@SandelinosDIY]

You can now download all the files here: sandelinos.me/diy/Simple-Mixer/

[@tedpower]

amazing thanks!@@SandelinosDIY

[@finonomastropiero4261]

[@Fezpan]

what program are u using to make this schematic?

Why use two inverting op-amps, when you can also use a single one in non-inverting configuration?

[@SandelinosDIY]

Because a non-inverting opamp doesn't work as a summing mixer.

[@maxwellessel5561]

Please does the ICs need to be powered ?

[@SandelinosDIY]

The opamp needs to be powered from a bipolar power supply. You can see the full schematic on my website linked in the description. Since my synthesizer is eurorack, I use a ±12V supply but the circuit will work with anything from ±5V to ±18V If you want to build your own bipolar power supply here are 2 great videos on the subject you should check out: kzbin.info/www/bejne/poKuf2Zmgt-caMk kzbin.info/www/bejne/hqPWh6R-ltdnq5I

[@graceministries.]

What is the ic used for this board

[@SandelinosDIY]

I used a TL072 but pretty much any dual op-amp will work.