I don't think it's possible. You can use the switch to hold down the button to change sequences with one finger. That's the closest thing. Or use external midi of course.

@@nelsoncolereis4058 ok, thanks for your answer. :)

Hey, I don't know. Most of the time it's the power supply. Check if all your (solder)connections are ok. Maybe try a diode between +5v and the VCC? Or a small resistor? You can use a bread board to test things out, see what works. Other then that, no idea.

@@nelsoncolereis4058 Thank you for the feed back!

May be a „ground loop“.

Most of the mods are just patchpoints on the back of the pcb. The vco mute is a switch between the vco output and ground. The memory button is the two contacts of the memory button with a switch in between.

The middle leg of the resonance pot. It feeds back into the filter. The filter behaves a little strange to audio inputs. Kind of like a band pass filter somehow. Good luck!

@@nelsoncolereis4058 Thanks!

​@@nelsoncolereis4058 perhaps the band pass behaviour is because the middle leg of the resonance pot isn't the right place for feeding in audio? Is there somewhere between the VCO summing and the VCF you could inject external audio instead? Looking to do an audio in mod for Volca Keys

@@dharmaone77 I don't know. It's been I while. I basically poked around and found the audio input I use that way. The filter is actually pretty cool. It is not your typical filter if you use it like this. Has more unexpected results this way.

Thanks man. There's an explanation in the discription. It's just a couple of wires and some switches. Try it out with some alligator clips.

Thanks! It's a wire from the vco out to a switch to ground. So flicking the switch mutes the vco.

@@nelsoncolereis4058 Thank you so much, now i understand!

They sure do. :)

On my monotribe I kept the battery compartment but get rid of the speaker instead, to make room for mod :p

@@LouisSerieusement Yeah, good idea. But that wasn't enough. And I like having it on the front side.

@@nelsoncolereis4058 thanks for all the feedback it's great to speak with people who mod stuff <3 thank you for sharing !

If portability is important, you could replace it with 2 X 18650's & a $2 voltage booster/charger module.

Thanks, there are no schematics. I explained the mods in the discription. Most of them are pretty simple, so no schematic is needed. Simple jacks and switches. The noise comes from a white noise app on my phone.

@@nelsoncolereis4058 I was aware of those solder point but didn't find a use for it...now it seems obvious, very clever idea ! So you have 3 separate output on your volca ? VCO/filter/Main ? Why would you use the VCO mute, does it substract the signal from the main output while still trigering the filter ? I don't get it sorry but, in any case, thank you so much for sharing, lot's of people never share their mods.. thank you so much ! Cheers from france :) Louis

@@LouisSerieusement Hey Louis, VCO mute does what it says, it mutes the VCO signal. That way the vca opens when a note is triggered, letting through either th audio inout or the filter self oscillation when the resonance is cranked up.

@@nelsoncolereis4058 thanks it seems obvious now XD

Thanks!

Yeah, Monotrons can receive and send clock. Atleast the Classic and the Delay, not sure about the DUO because it has no lfo. There are resistors in the middle of the pcb just above the lfo int pot. Where the blob of glue is. Not sure why they put that there. Take a jack and use aligatorclips from ground to the jack ground and poke around a little there in the resistors. There’s a clean sync signal in there. Same goes for sending a clock in. It’s two resistors to the left if I remember correctly. I’m modding another Delay and my Classic soon so I’ll document it better with photos and make new demos.

Check this video it shows where the sync in is. The sync out is a little to the left.

Wow, thank you! Really appreciate that! This is a game changer for my mod. I'm basically doing the same, but I'm modding a duo as well and recasing both in the same space.

Cool, I modded a DUO a while back, turned it into a cv contrable filter with feedback distortion. The pots are easily replaced by cutting the legs and soldering wires to a new B10K pot using the old pot solderpoints on the back. It is a lot better to work with this way, not the tiny knobs so close together.

Oh damn, I never thought to just cut them. Thank you! Haha I was not looking forward to de-soldering them. Yes, agreed 100%. I'm not a big fan of this style of knob. I get that they wanted a small package, but it's more fun when you can grab and modulate without worrying about knocking out other parameters

Middle leg of the pot to ground, with a switxh in between. That simple. :)

Not sure what you're saying. I don't know of Shock Electronix eurorack. The mods are mostly made by trying out points, connected to the - of the Monotron. Different points trigger different sounds. Like circuit bending. Some points are labeled on the back of the pcb.

I took a closer look at everything you did after my first message and you've got quite a bit more than them actually; your's is the best Monotron Delay mod out there probably. So, very inspiring! Thanks and have a good year.

Thanks, you have a good year too.

Hi nicoiutub, the power supply is really easy. Just get a 3v power supply, get a power supply jack that fits and solder the + to the + and the - tot the - of the battery side. The Montron itself already has an on off switch.

I found a better way. There is a ground and +5V solderpoint on the back of the pcb. I used a diode on the +5V side.

I don't have tips on using midi. Never tried that. All the mods I did are cheap. You just need some switches, buttons and jacks. What do you want to know?

I'd like to add the resonance mod on the vcf and the square wave on the vco. it could be nice to add some switches to route the lfo from pitch to vcf. I'd appreciate your support !

Sorry can't help you with that. The resonance mod is well documented online. You should be able to find enough info about that and try out stuff yourself. For the LFO routing, the LFO output is accessible on the back side, rout it to a switch then to where ever you want to go.

Nelson Cole Reis btw thanks