Making A $2000 Synth For $99

thanks for watching!!!

[edwrdw]

Drop your email address for updates about this synth + new one (that's way cooler)

[smellymala]

You can buy a Juno but you can’t buy the engineering talent to make everything in your home from scratch, you are on point little bro

[fluiditynz]

Your problem with the analogue is from charge sharing between inputs. Give a little longer for each input to settle, put small capacitors to ground from each input(I.E.10Nf), and use lower resistances on your ADC inputs to combat the charge sharing. It puzzled me for a bit too, back around 26 years ago!

[MM-vset]

This is such a niche thing, I love it. You might be tapping into a specific subgroup of synth heads and homebrew engineers with this content such as I. Would like to see you build more synths!

[Steelplayer]

Long before the internet, Google, and YouTube, in the amateur radio community, we had the concept of an "Elmer". This was a benevolent individual who offered their knowledge to help new "hams" to kick-start sometimes daunting entry into the hobby. I applaud your tenacity and will to learn and meet your goal. Great work, and I'm sure you learned more than you may have expected. I hope you had your own "Elmer" to turn to for advice. As you mentioned, many times, even with professional designers (and in many fields), it can be quite easy to paint yourself into a corner. An extra set of eyes can oftentimes get you back on track after you have looked at it for the thousandth time. Best of luck to you, and keep on! You're doing great!

[danielmcanulty]

Awesome, not only did you get a great synth, you got a great new pile of knowledge! And you shared it for other people to learn from. Super impressive and enjoyable to see.

[symbiat]

Shit, as a software developer, I’ve always wanted to do something like this, so thanks for sharing your process 😁

[hypnotourist]

That's a serious deep dive for a "starter" project ! I love the spirit.

[HowToShopGreen]

Really impressed that you where able to recreate an expensive and complex midi device with off the shelf parts for under $200.00. What you did is not something typically taught in a University environment. Beyond that, I feel that your keen awareness to share this journey online with others here is priceless. I hope you continue to innovate and share future creations here for us to enjoy. Time for me to pull out my old Teensie and see what midi accessory I can reproduce. . .

[ezion]

So far well done, especially with little experience! You have a bounce problem and for the multiplexers you probably need to add some deadtime to make sure you are reading the signal from the pot or switch you intent to read from. On the bright side, for 99, 9% sure it is all fixable by changing the software.
Read pin, set multiplexer, WAIT, read next pin, etc...

[D_E_N_modular]

you're braver than all! crazy challenge you achieved! i have looked into electronics when i started modular...i gave up when i grasped the amount of complexity layers. this is incredible what you achieved from scratch.

[robertpastorella]

Dude, your ability to keep with it and work through your problems in public is awesome. Please keep documenting your journey, so inspiring for music peep and electronics alike. Let's go!

[surfthetsunami]

I hope you are inspired to keep making synths. Excellent work!!

[tylajoeconnett]

Sounds pretty far away from a Juno 106, but don’t let that take away from the fact that this is a amazing show of determination,

The end result is fantastic, it’s Junoesque, so I’d say it was an absolute success.

[BusyElectrons]

Very nice project. I'd love to see the hardware documented once you get a chance to do a second revision of the board.

[Alex-nlsy]

Fantastic! The Juno was my first I took 12th grade highschool off, in order to go to a music store and buy one.

I just wanted to say, this is the best video I have ever seen on this/these sorts of subject matter.

I am older than dirt. Old enough to have bought a Juno new. I have been studying this stuff since then. That is a long enough time span for me to have at least learned what a good instructional video Is.

Congratulations
Thank you

[BeniRoseMusic]

Yo thank you for acknowledging how much freaking work it takes to get over the CAD/PCB design part of circuit building. I feel pretty stuck here because it feels like you need to become pretty well versed in a lot of details from component libraries (both in your CAD and in your mental database of what's what) to CAD and 3D design to PCB layout. It's absurd and whenever I see a video of someone who went from knowing nothing to designing a PCB like it's no big deal I roll my eyes, so thanks for being forward about that part.

[ericdavey]

Ooo! Looks like a fun build. Doesn't hurt that it sounds awesome!

[blankspace]

Super cool DIY project. Makes sense as something to do for fun and just to be able to say you made your own Juno 106 lol. Would love to see an analog version tho! Seems doable and even though you might not be able to get all the same components, you may end up with something even cooler!

[stefankachaunov]

I think the instability is coming from not having pull-down resistors on the multiplexer inputs. I've made a MUX circuit before to read a bunch of ultrasound distance sensors and the signals I was getting were all over the place, until I put some high-value (>10k as far as I can remember) resistors between each input and ground. You could bodge wire them to the pins of the THT parts so you don't have to solder to the fine-pitch IC, although you get extra cred if you do that :D