Super modified Korg Monotron keyboard demo

This synth was a work in progress from mid-2012 until last year when I finally got around to finishing it. It's based on a heavily modified Korg Monotron; giving it a full-size two octave keyboard with mod wheel, a sub-oscillator, a variable pulse wave and more. The digital side is running on Arduino code and supports MIDI, although that functionality isn't shown here. The case is laser-cut MDF with an aluminium panel and the keyboard mechanism was re-purposed from a dead M-Audio MIDI controller.
Photos, code and schematics can be found here:
hkadesign.org.uk/monotronkb.html

[@blickblocks]

Your playing and this synth is such a perfect combo. I love how fat and funky this is.

[@dimllc]

Awesome! You made your own Monologue from a Monotron.

[@kevinr.3542]

I want to know how he did tbis. Is there a how to video?

[@kcat80]

I think technically it's closer to a monotribe.

[@THEREALDATALORD]

@@kevinr.3542 Read the description brah

[@tomislavsekerija1957TN]

I am sure I am not the only one who thinks you should make some kit at least if not the whole thing assembled. Great work!

[@davidzuniga3107]

Whoa.. from a Korg Monotron :O This is impressive!! As well as your demo!

[@soundinmind]

I impressed! Really nice job!

[@parasiteunit]

Still come back to this vid often - outstanding work. The Pulse Width control - wow.

[@rolandsoreal]

This rules. Top work. Excellent demo also.

[@Schnurzbolz]

wow, nice! you accomplished what i tried again and again for the past 5+ years (although, meanwhile i try to use 3 monotrons in one eurorack module :))

[@archangelgabriel8988]

most impressive good sir!

[@midierror]

bloody amazing!!

[@BRIANNOYSMusic]

Good job man!

[@MrGREYMATTERS]

BRILLIANT!!

[@johma808]

What the funk! Lovely

[@Wizkidmelburn]

Brilliant!

[@Fanatic12000]

damn this is sick !

[@BxCx666]

Amazing!

[@jensc.moller7805]

Very good

[@Jason75913]

daaaayyyuumm!

[@TinyDiodes]

Bad ass.

[@mono6839]

Great!

[@ithaca2076]

that is cool

[@TrueTempleDog]

Ooh, that's DAMN filthy.

[@almostliterally593]

I wish there was a kit for this

[@AdamTheAd-vanc3d]

Wooooow !!!!!

[@shufflephunk]

i am looking fopr the aux input replacement component since mines broke down, anyone knows where to get?

[@lorenzogiani7190]

What about something similar with a Styolphone Gen x-1? I guess its possible, but whatcha think

[@Shnowz]

hot

[@cloudrun654]

Can you help me? Ii soldered + line to VCC pad and - line to GND pad on the circuit board as a power supply mod. However, this added a whistle sound to the audio signal. Tried different V5 power supplies, different wall outlets, and even cables. Any thoughts on how to get a clean signal when adding a power supply mod?

[@broderalias]

WANT!

[@allourep]

Damn. The link to the schematics is broken

[@Handcraftedrock]

Superb work. Both playing and the built. I can not stand so called new analog synths. With digital displays, and USB, and MIDI, and flashing lights, etc. THAT is how analog synth should look like.

[@giliack7017]

I could not to access the schematics code and photos.

[@manyviceslifeincrisisahuma3054]

can 3+ monotrons be stacked in unison to make a polysynth?

[@midierror]

this might be possible with a cvocd as that will route chords to different synths!

[@manyviceslifeincrisisahuma3054]

@@midierror I was playing with the volca bass the other day. Thought it would be cool to make one from 3 monotrons for the extra mod options and have a cv patch bay

[@coal__goal]

Hello. link not working?

[@davidbarrada3]

How hard is to accomplish this with no electric or schematics knowledge?

[@HarryAxten]

To be honest - extremely difficult - as the saying goes you can't run before you can walk. That said, it has never been easier to learn about electronics. If you're a total newcomer, I'd recommend getting some beginners electronic kits. That way you can get some instant gratification that makes you want to keep learning. Electronics theory is necessary to learn but will probably put a beginner off.

[@davidbarrada3]

@@HarryAxten thanks man ! I'll try to work on easier stuff so I don't lose motivation. Patience is not my thing when soldering or fixing things but I have the monotron and this would be really something to make out of it.

[@noordholland648]

are those piano keys?

[@synthmalicious7541]

Just buy a monologue at this point lmao