"> What's the voltage range you're using? 0-1V or something higher? What about the result for several octaves, is it only the lowest note that's sharp?"

-- e_v_k

The range is 0V to +5V in this experimant. Transposing up tones, semitones or octaves yeilds the same result and just the first note is sharp.

In response to a question you asked earlier that I missed... When the eronious C sharp plays the GVCO tells me its playing C sharp. It doesn't think its playing C but outputting C Sharp.

I did some new experiments with the internal quantizer on this morning and here are the results please take it as read that with the quantizer off all sequences play back as expected as it does if I use an external quantizer.
If I send in a sequence that is C then C one octave up the two notes play back at the same pitch. If I increase the interval between the two Cs by another octave I get a one octave interval, this behaviour is the same when the quantizer is set to chromatic or octaves.

I also tried another experiment inspired by noodle_hut.
If I create a chromatic sequence by ignoring the voltages coming from the sequencer and just setting them by ear, I can get the GVCO to play back a chromatic scale ( with the internal quantizer on ) but every note is a semitone sharp above what the GVCO its tuned to when the quantizer is off. So in some ways one could argue it is, kinda, working.

But I have access to six other quantizers and not one of them produces the results the internal quantizer does. They all work as expected and what you put in you get out ( unless you put in a rouge voltage and then that gets corrected/adjusted so the resulting note is what was desired )

Hello fellow Eurorackers,

I have been building my own racks since I first fell in love with modular many years ago. During this time I experimented with different materials, electronics as well as with my own "hacks" for cable management.

This is my first case that is ready to be sold that contains all the lessons learned. Every screw, component and material have been carefully chosen to be of highest quality and if you hate cable spaghetti you will love the special features.

I hope it will bring you as much joy as it does to me.

• 3 x 126 hp with threaded inserts

• Integrated power supply & bus boards (Konstant Lab):

  • HAMMR 100 Power Supply Unit
  • 3x Bus Boards (16 connectors each)
  • Power Brick (Meanwell 120W) with Power Cable

• Special features

  • Dust-proof Air Filters
  • Channels and Wormholes for Cable Management
  • Cable Connection Cogs
  • Shelf for Powerbrick and Patch Cables

• Dimensions

  • Width: 700 mm
  • Height: 350 mm
  • Depth: 350 mm
  • Weight: 13 kg

All components are produced in EU. Each box is assembled by my hands :)

Professional Electronics
I want only the best for your modules. That is why I partenred with Konstant lab, the market leader in eurorack electronics. DRONEBox has a built-in HammerPWR, a whopping 100W power supply, which is plenty for even the most hungry modules. It comes with a 120W power brick (Meanwell GST120A-P1M) as well as three pocket bus boards for each row, so all you have to do is plug in your favourite modules.

Outputs: +12V / 5A (splited to two branches 2.5A + 2.5A), -12V / 2.5A, +5V / 2A
Input: 20V DC
Protections: Input filter, Input overvoltage. Input reverse polarity voltage protection. Output overvoltage. Output short circuit – automatic recovery. Output over current – automatic recovery. All output protections are independent for each rail.

Efficiency: 90%

Additional: Dual input common mode LC filter with high efficiency of canceling noise and interference from input connector. Additional input filter for each converter for minimal output noise and interferences. LEDs indicate present and drop of output voltage. +12V output is splited to two branches for modules separation and minimalize of voltage dropout.

For all other features (which there are many), visit my website drone-audio.com

And since Black is the color of DRONE AUDIO, there is a one-time limited offer for Black Friday!

EDITED Nov 25th, 12:16

We’ve always had a counter on the rack pages that shows how many users have viewed a rack.

This counter also recorded visits from people who were not logged in. Over the years, most of those turned out to be bots, AI spiders, and web crawlers. The table grew to around 150 million rows. We had no reliable way to distinguish real traffic from automated traffic, so we now only count visits from logged-in MG users. All visit entries from non-logged-in users have been deleted. Which is a drastic 95% decrease for most racks.

We never considered this statistic particularly important, but unfortunately some people cared about it and are upset about the change. There was no bad intent behind this change!

Don't know what kind of music you're making using the modules. Some general advice for a secondary rack. A nice modular sequencer would be a good choice, some of them have a distinct workflow that differences a lot from the normal standalone one. Good effects with modulation is also a good idea.
There's a sampler by 1010 music in the rack, but if you're interested in some hard music, dance music, try some analog kick and hihats.

Don't know what kind of music you're making using the modules. Some general advice for a secondary rack. A nice modular sequencer would be a good choice, some of them have a distinct workflow that differences a lot from the normal standalone one. Good effects with modulation is also a good idea.
There's a sampler by 1010 music in the rack, but if you're interested in some hard music, dance music, try some analog kick and hihats.

Behringer modules are good for beginners, and they're where I first started. The more you play you'll notice the differences in sounds of behringer products. Try to use the modulation and utilities stuff more in Behringer. For cheap oscilator modules and effects modules, there're lots of other options sounds better but only slightly expensive than behringer.
1010 sampler is good, but you might have to suffer from a lot of menu diving to use the details. Doesn't mean that it's not good, just a gentle reminder if you really care about this.
I'd recommend the new Bastl Citadel series, for any use. It now has three firmware, covering synthesizer, effects, and sampler. Good for a supplement and if you 're bored with one function, you could' switch another one easily. It has built in cv, pattern generator and midi support that makes it a nice utility in the system too.

I'm now using a 104hp 7U perfromance case and would want to limit all my useful, important modules for performance and travel inside. I wish to know are there any advice on disigning this size of rack and how to utilizt the space.
This is the rack I'm currently using (The third row is a 4ms 64pods, which I use for light travel and jam):

And this is my current plan:

I wish my main case could take charge of most techno and house performance and still provide me some space for doing ambient. The 4ms is mostly as a portable option for me to take some out and go to a park for a simple jam.
Some point I'm hestitating:
1. Shall I remove the BOC+SED and replace the combo with a doepfer 111-6 synth voice? The rides in the storm modules sound good but it just takes too much space in total (20hp, comparing with 10hp of the doepfer one).
2. Erica synth Black Hole DSP2 sounds good and I really like the knobs, but still it is a little big large. I'm thinking to change it with a Mimeophon, or a granular effect like Mojave or Beads. Which option might be better?
3. How many mixer is needed? One cockpit would not satisfy all the need. Can a VAC mixer solve the problem? or should I get another 1U small mixer? (I'm not gonna buy any large performance mixer until I have two intellijel case)

Feel free to ask the product I've owned if you're interested.

Yeah, the Space FX is basic and not great, however it's a super cheap option so I was able to get two inexpensive units to mess around with. I decided to do the Space FX full wet signal on one of them. I was playing around with it over the weekend of feeding the signal of one into the second one then back into the first one. Combined with a VCA I was able to get some pretty fun distortion, mostly combining the Ambience on the wet-dry signal one, then Echo on the full wet signal one. I had a lot of fun messing around with it for a while, but the sheer lack of CV control is the killer. That will make for a future DIY mod for me.
But at the end of the day I get better FX through my mixer / workstation (I picked up an old Yamaha AW16G for cheap and it's filling in a lot of gaps in my setup for the time being). I will probably pop out the Space FX when I can get something better, maybe have a little diy side unit for quick fx hits, we will see.

I appreciate the feedback!

EDITED Friday November 28, 15:46

What's the voltage range you're using? 0-1V or something higher? What about the result for several octaves, is it only the lowest note that's sharp?

Thanks for your input e_v_k.

So I tried a new experiment today and created a 5 step sequence that consists of C D E G A ( pentatonic major ).
Without the quantizer enabled I get that exact sequence played back. If I turn on the internal quantizer and set it to pentatonic major I get D D E G A. So the first note is now a whole tone sharp. If I change to quantizer to chromatic I get C Sharp as the first note followed by all the correct notes.
If I go back to me original sequence and play it back with the quantizer on and set to chromatic I can get the first note to play C by detuning the "tune" knob by about 48 cents but all the other notes that follow are now out of tune.

I'm still sctarching my head on this one.
What I really need is someone else that has a GVCO to try the same experiments and see what results they get.

EDITED Nov 24th, 19:09

Smart transaction with @PandorasBox
Module in very good condition.
Recommended Seller !

Even already quantized control voltages should not be used as CV source for the module. In this case similar problems may occur if the voltage steps of the incoming signal are close to the voltage thresholds of the A-156.

I can't see how this is relevant in this context. If the module is correctly calibrated a voltage that isn't close to the thresholds should always be correctly quantized. It doesn't matter if it comes from another quantizer, a keyboard or a random S&H.

I don't have any experience with this VCO, but I see that it supports different scales. Do you have the same problem with all scales? Have you tried to give it controlled voltages around the level that should result in a C to see if you can get that C at all on how much it's off?

The calibration mode seems to be quite helpful. As I understand it, it will report the measured voltage. What's it saying about the C that's played as a C#?

OK, so far, I have updated all Buchla 100 series (Model 102 - 196) and clones of them.
Now all of them have consistent titles, which means we can now (finally) sort all modules within this format after name.
I have tried to move all images to the correct version of each module. (Might have missed some.)
I have removed all pure duplicates, but kept various clones of each.

Scroll down to Model 102 and have a look: https://modulargrid.net/u/modules/browser?SearchName=&SearchVendor=&SearchFunction=&SearchSecondaryfunction=&SearchHeight=&SearchTe=&SearchTemethod=max&SearchBuildtype=&SearchLifecycle=&SearchSet=all&SearchMarketplace=&SearchIsmodeled=0&SearchShowothers=1&SearchShowpanel=1&order=alphabetic&direction=asc

I plan to do the same with the 200 series soon.
Let me know if you have any thoughts, wishes, etc.

Hey folks

I’m pretty new to the Eurorack world, and at the moment I’m spending a lot of time playing and experimenting with my small 2×84hp case. But I’ve somehow become totally addicted to building case after case on that wonderful website and getting to know all those amazing modules in theory. It’s incredibly fun to get lost in it for hours.
I’d like to show you my current case and also a possible option for how it could look if I expanded the rack by another 2×84hp.
Since I’m still a beginner, I’d really appreciate your input…
Do you think this is a logical and solid next step? Am I missing any essential utility modules or structural elements? Could I continue in this direction, or is there something you would consider absolutely necessary?
I’m not looking for persuasion in any specific direction — every opinion is valuable to me.
It would also help me a lot if you think the case is fine but you personally would approach it differently. Please tell me that too, because that also helps me learn and see new perspectives.
I’d be really happy if you could share your thoughts and help me continue growing.

my case now

next step?

Hi,
With this size case, an FX-AID would be fine, although it's difficult to memorize and view the different settings... If you want a good addition to what you already have, something affordable and with low hp, the Erica Synths PICO DSP is a good option.

Can I have your broken oscillator?
-- noodle_hut

Sure you can.
Where do you live? I will pop it round shortly.

Space FX is basic, but if you already own it, have the hp, and it adds some no-fuss air to the mix, why not?
On the other hand, if I actually tried one, I might not say that.

EDITED Friday November 28, 15:46

I would change the FX module... the behringer space fx is in my opinion not a really great fx.. the sound quality is not so good, i would change it..maybe a Fx aid, or a desmodus versio, or something... but i would not have fun with the space fx

I really appreciate the vast esxplanation on how a quantizer works and I understand the principal. But I really think the point of what I'm saying is being missed. The Oscillator will play the scale perfectly without the internal quantizer being switched on.
So the voltages coming from the sequencer are precise enough to produce the correct pitch. Both the sequencer and the oscillator are digital as well. As I said in my previous post, I have tried putting an external quantizer in the signal path and it has zero impact. All the notes in the scale are played correctly. Only when I turn on the oscillators built in quantizser do I get the problem and its only the first not in the scale that is a semitone sharp. So adding offsets will just put everything else out. I know because I have tried it already. The only explanation I can think of is that that the internal quantizer is in some way faulty or incorrectly programmed.

EDITED Nov 22nd, 18:19

EDITED Friday November 28, 15:46

Quantizing already quantized notes leads to a dark portal of mysteries and small voltage offsets.
Add a small +- voltage offset to your input cv and your half step off will be fixed, or migrate.
Depends on how your quantizer rounds up or down when the input is close to a note.

The notes from the sequencer are not already quantized. Its a digital sequencer so the voltages are just precise.
So the fact that just the first note is getting shifted up a semi tone really makes little sense to me.
But I don't build or design modules so thats not much of a surprise.

I have repeated the experiment but instead of using the built in quantizer I used an external one and the sequence plays as expected.
So it does appear to point to some issue with the internal quantizer to me.

EDITED Nov 22nd, 11:28

EDITED Friday November 28, 15:46

Nice business with @bssw, all good! : )

Buying a module carries much less responsibility than selling a module.

There are scam possibilities from both sides. I am dealing with lot's of requests to delete unjustified downvotes which is annoying because I don't want to interfere in private conversations so if someone comes up with a better, easy to implement idea I am all ears.

-- modulargrid

I've been thinking about a system to replace the current up/downvote options with and I think I have a pretty solid idea here. Besides being more reliable, I think this system will also reduce the amount of requests to remove negative feedback.

Whenever a user has bought or sold a module and decides to up/downvote to the other, the user on the receiving end is sent an automated request to return feedback to the user that initiated it. The catch is however, that only after both parties have submitted their feedback, the score is shown. Neither user can change their feedback after placing it.

This approach eliminates any worries about receiving retaliatory downvote simply because a user is dissatisfied with another user. At the same time, if a transaction didn't happen or if a user is being unreasonable, a user can decide to not leave feedback and thus not getting any in return either.

An optional one-time opportunity, in the form of a single non-editable comment, could be given to any user receiving the downvote as a way of explaining themselves. This comment would be shown as a comment on the users profile, for example when hovering over the username of someone who left the feedback. In any case, comments can not be replied to or edited after placing them. If a solution has been agreed upon by both users, there will be an opportunity to change the negative feedback into a neutral feedback and with that also removing the comment from the users profile. In no way however, will negative feedback be allowed to turn into a positive feedback unless submitted by mistake.

Since there are several aspects to this system, implementation can be as simple and straight forward, or as elaborate and complicated as desired. Simply withholding information about the type of feedback left by one user to another creates a far more reliable system than is currently in place and completely eliminates any fear of retaliatory feedback.

I know this system is not entirely fool-proof, but it would be very difficult to pull that off without enforcing transaction verification.

The current feedback score for users can be held in the form of a legacy score in order to smoothen the transition to a new system.

Thanks. Yes, I have started to group CBS and SFTMC with Buchla,
(I've only done a few so far) including images from those early panels when available. 👍

EDITED Nov 20th, 16:31

Duplicates and inconsistent listings are always a pain, especially with Buchla clones and obscure modules like CBS or San Francisco Tape Center gear. For those, maybe grouping them under “Buchla” but noting the manufacturer/clone in parentheses could work - keeps them searchable without losing the historical context. Overall, a consistent scheme like yours will make the database way more user-friendly.

I bought a couple of Happy Nerding modules from @Mumdad and was very pleased with their clear and friendly communication and prompt shipping.

I just want to leave a note here to say that dealing with @neuroloop75 has been an absolute pleasure.
He made me feel really comfortable throughout the whole process — and I’m not used to trading here with such high amounts, especially for something like the Morphagene I bought, which arrived practically as new, perfectly cared for, no marks, no smoke, nothing at all.

Thank you so much — you can trust this user completely. He does everything properly, and even if he sometimes takes a little longer to reply, he gives you all the confidence you need to complete the deal without any worries.

Highly recommended!

Thanks both.
I know my ay around the Buchla universe, yet I felt the need to hear other users opinions.
I'm a moderator and will do my best to make it better. It will move slowly though, with some changes every now and then.
I will concentrate on the original modules and the clones.
Cheers

Nothing wrong with running their modules
(though I've avoided getting a space fx, and have those "four" functions covered.).
I've used the Chaos Marbles clone often, way more than the Abacus. I'll never understand the popularity of Maths.

The 1050 mix sequencer would work great here as your output mixer or for getting a 24 note sequence from the 1027,
or just for switching signals. There's also the cable in the back to send the 1027's clock to the 1050, and a switch for it.

The behringer arp and roland clones are on discount now, I suspect that line will be discontinued soon.
I know there's a ton of them out there for the used market, but get 'em new while you can.

You could benefit from a good mult to share your hard-won generated signals.
I like the Synthrotek MST '07 Buffered Multiple @ 4HP. Best $99 you could spend here.

I think you can get lots out of what you've shown here already.

I've moved things around, mostly to help with using those little short yellow Doepfer patch cables.

EDITED Nov 20th, 01:45

If you own a GVCO you might be able to help.

So, if I feed a sequence into the volt/octave input that consists of the “C” major scale ie: C D E F G A B C
it will play that back just fine. However if I turn on the VCO’s built in quantiser, set to chromatic, it plays back C sharp D E F G A B C.
I have calibrated the VCO so it’s not that. I’m completely baffled as to why the first C in the scale is sharp.
Is my module faulty or are they all like this?

EDITED Nov 24th, 21:15

Don't hate me for being Behringer's b1tch at the moment... I'm a hobbyist dad on a budget.
Here's my rack so far. I don't have the Four Play module yet (awaiting resupply) and the 2HP Tune is in the mail. Excited to play with that when it comes. I also have a Dual VCA module I use for now but is not shown here.
I still have some HP left after those for some cool stuff in the future.
I've been playing with these modules combined with the Arturia MiniBrute 2 and Behringer Neutron and getting some really fun stuff out of it. I'm mostly doing horror drones, industrial and bass dub beats, trip hop and playing around building melodies here and there but there's so much to discover. I'm having a ton of fun putting a few odd songs together.
My big issue at the moment is I would like to sample and loop on the fly but I gotta save up for a more expensive module. Considering saving for a 1010music bitbox to cover that.
Cheers!

EDITED Nov 19th, 20:19

It may be buggy then. I'll see if I can find a reproducible scenario.

That's a recent change right? Just checked and it indeed seems to work. Great, I used to literally always dismiss the manufacturer info.

-- MPCman

I looked it up, it was commited
29.08.2023 16:47 GMT :-)

But there is always the chance that it is not working right in some browser or a code regression, so report if you have issues.

Similarly, I also wouldn't mind by default hiding the manufacturer info panel either ( which shows up above search results when the manufacturer is set in search criteria).
-- MPCman

This should already work. If you hide the manufacturer info panel it is saved in the user pref and should be restored even after a new login on a differen tcomputer.

-- modulargrid

That's a recent change right? Just checked and it indeed seems to work. Great, I used to literally always dismiss the manufacturer info.

Buchla a mess? Did recently someone looked in the pedals section?

2. Who is going to do the actual work? (Knut has a day job or two and can't be bothered)

Please bother me anytime, if I can fix stuff I do it. I just have little knowledge about Buchla.

3. What about DUPLICATEs? People are making very poor new module entries because they don't know how to use the Marketplace. Or do not care to.

Moderators can merge duplicates or what is even easier just unlist/hide them, so only the uploader can see them.

4. 'Manufacturer Approved' lock. Even if you know/mean better, you can't. https://modulargrid.net/e/forum/posts/index/13163)

Under the Approved stamp is a link where you can send a message to the manufacturer and tell him he should unlock or update the data.

I will unlock modules where the manufacturer is out of business. Someone has to tell me which manufactureres that are.

5. (Your gripe here)

sighh

-- wiggler55550

Show Blank Panels setting is stored in the DB

If you check/uncheck Show Blank Panels in the modules search form the change is saved in the database. Next time you log in this will be used as default value so you don't have to hide them every time.

Searched the forums but couldn't see anyone asking this - also didn't see in the settings either. Is there any way to turn off the blank panels by default?
-- Pilkafa

New feature: Show Blank Panels setting is stored in the DB

If you check/uncheck Show Blank Panels in the modules search form the change is saved in the database. Next time you log in this will be used as default value.
Edge Case: if someone messages you a link to a search result with blank panels that will override your setting, else you would not see the panels.

That's right KNYST, it's a big mess and not just about Buchla stuff. Not sure if this can be solved at all. Inconsistency is a trait of the human condition, I guess, and module entries are made by many humans.

An number of questions come to mind:

1. Who is going to decide how things are 'right'? (I find myself having different views over time)
2. Who is going to do the actual work? (Knut has a day job or two and can't be bothered)
3. What about DUPLICATEs? People are making very poor new module entries because they don't know how to use the Marketplace. Or do not care to.
4. 'Manufacturer Approved' lock. Even if you know/mean better, you can't. https://modulargrid.net/e/forum/posts/index/13163)
5. (Your gripe here)
6. ...
7. Can we please have a new Buchla 'Model 000 Source of Inconsistency' ? With a Tiptop made Euchla (pat. pend.) format RoHS compatible version, pretty please ? No wait, we got MG already ;-))

The world is a miserable place. But beautiful.

How do you connect your 11-ish audio outputs to your two line-outs??

Similarly, I also wouldn't mind by default hiding the manufacturer info panel either ( which shows up above search results when the manufacturer is set in search criteria).
-- MPCman

This should already work. If you hide the manufacturer info panel it is saved in the user pref and should be restored even after a new login on a differen tcomputer.

For the search defaults: It's true that everyone prefers a different setting. Looking into it ...

they swapped my faulty one for a new one.

I am chasing the specific sound that Noise Engineering modules provide so I am willing to pay premium for it.
-- ModeB

Fair enough, I get that :-)

I would suggest the inclusion of a Voltage Block or the excellent Neo Trinity from Bastl, the NE voices start shining once fed with heavy modulation.
Also, there's a stereo solution for line out offered by Intellijel which is slightly more HP efficient I think.

Hope this helps, best of luck for your musical project !

$2,300 is a lot for a one drum/one oscillator/one filter system.
-- noodle_hut

Agreed, however I am chasing the specific sound that Noise Engineering modules provide so I am willing to pay premium for it.

In terms of the filter/fx/modulator/VCA that I have currently picked, these are probably unnecessarily large/expensive for a rig this small. Open to suggestions :)

$2,300 is a lot for a one drum/one oscillator/one filter system.

Hi all,
I've had my fun with standalone analogue synths and am looking to begin my eurorack journey.
I am looking to build a setup to be used for live performance and studio recording of hypnotic techno/groove.
My current studio setup is centred around using my elektron digitakt 2 for drums, sampling, midi sequencing and arrangement.
I intend on using my digitakt paired with the Mutant Brain to handle all my clocking and sequencing, therefore my ideal modular setup is only to be used as a synth voice and rhythmic noise generator.

I have linked my current idea below, any and all feedback appreciated!

EDITED Nov 19th, 22:52