The WASP circuit relies on the non linearity behavior of a cmos ic described here

https://www.fairchildsemi.com/application-notes/AN/AN-88.pdf

It sounds to me like you are running a switching power supply that isn't filtering out it's PWM signal completely that the WASP is reacting with. The WASP is probably fine.

I wish the limit were based on HP rather than number of rows. Four rows of 168hp takes up quite a bit more server space than five rows of 84 or 104. I'd like to maybe add a base to my low cost case eventually, and don't feel that 420hp puts me quite into the "really big rack" category (a c-cup at best!). Granted, yeah, I could technically afford to contribute, but I spend so much time fantasizing about these modules that by the time my paychecks arrive, I've already spent them.

Greetings all,

Newbie here--just bought my first couple modules, one of which was Doepfer's A-124 Wasp filter. My question is... is this thing supposed to hiss?

I finally put a spectrum analyzer on it, and I'm getting a single 23.7 kHz, -27.2 dB transient from the thing. Even with no sound going through it. In fact, as soon as I turn on my rack, the -20 dB light on my mixer recognizes sound on that track.

Whether the filter is set up as HP or LP, fully open or fully closed, I still get that spike. Oddly enough, when the filter is closed, the spike rises to -19.8 dB.

Is this part of the "character" of this filter? Other than the hiss, it seems like a worthwhile module.

I checked the rest of my modular setup, and a similar transient spike is present then too, but at a more acceptable -59.5 dB.

Any suggestions? Or did I just get a bum Wasp?

Why am I here in your mind? How do I get out? This is the true terror....

No. It allows for an FTDI programming cable such as the programming cable Circuit Abbey sells.

does it break out to USB ? i count 6 pins

Unless you are going to build your own, I've chosen a case w/ power from Pittsburgh modular. They have a few versions from small desktop cases to large 6u(two rows) at 104hp per row. They also have a cheap "in/outs" module with a 1/4" input which might help you. I've been researching for months and still haven't bought anything yet. Its a lot of info and companies to sort through, I know.
-michael

I would also like to weigh in as a beginner.
I am new to modular and a guitar player interested in using these for effects. My limited experience is Moog delay pedals, but would like to expand to other areas. What would be a good place to learn to get started with a modular frame/power supply?

thanks,

jim

Phasing: Mysteron triggered once with full regeneration, recorded into Phonogene, played back slightly slower, mixed with original signal.

EDITED Feb 7th 2015, 00:12

Wow. Benchmark for how modulation/LFO modules should be, really. Intuitive design, lots of features. Best purchase I've done in a long while, will probably have to get a second.

It's as I described above, if you search for xOx it will not show up, because the module is called "x0x" (x-zero-x) as in 303, not "xOx" (x-oh-x). Search for "x0x" (x-zero-x) and you will find it.

EDITED Jan 15th 2015, 22:38

"it didnt show up in search.."
Actually is still doesnt...
If you try to search for xOx Heart blank manufacturer and blank function etc.. then no hits...
Its doesnt show up if you just select Grayscale.
Open Music Labs, the ACTUALLY designers dont even show up in the manufacturers, grayscale only make the panel...
So... Now I have one in my Rack at least.. by pressing + on the page YOU quoted...
but no one else can find it!!!

... or... im doing sommat wrong...

:)

M

YEah I might have, but that was an accident, what I meant is that Id been trying to find the xOx heart on MD to add to my "rack" but it didnt show up in search.. so I added it... So no idea why that was...

I think you had it labeled as xOx but it's x0x (the letter O vs the number zero).

DONE!
Ive been searching for this module, but it never showed up. Dont know why.

Very true about the Bypass/Active. It had me confused for the first few minutes. Bypass issue aside, this delay sounds amazing.

Marked as duplicate:
http://www.modulargrid.net/e/grayscale-x0x-heart-grayscale-panel

EDITED Jan 15th 2015, 22:37

Erbe-Verb is on its way :) Very excited to have such a rich source of extensive modulation inside reverb.

Thanks a lot! I'm going to download the application to see if it helps me.
Here's a few changes:

http://cdn.modulargrid.de/img/racks/modulargrid_146992.jpg

I started by building a basic synth voice e.g vco vcf vca env lfo,and expanded from that.
You have no way to sequence notes with what you just posted,consider a midi to cv and maybe switch out the trigger riot for a z8000 or a René.
Also what blender said an output is needed and what exper said still too many triggers
Build up a basic system slowly and get a feel for how things work together and avoid disappointment
If you have an iPad try zMors modular app it may help and doesn't cost the earth (like what you have planned)

Hi, I think at the very least, you will need an output to carry the audio signal out to your system/headphones to get sound.

Maybe something like this for your mixer to go into:
https://www.modulargrid.net/e/doepfer-a-139-2-headphone-amplifier

Satan's tender love embrace.
We are all Satan.
Punk

Added Expanded Turing Machine. Beautiful piece of gear. Really a treat for the rig. Also, traded out for an RCD for tripping those clocks. :)

Thanks a lot for the answer. Sorry bother you again but as you notice I'm really lost. Bu t I made many changes.
I put A 135 doepfer for mixer and vca.
I think the system as 2 Rows one for synths sounds (far away the classics analogue) and row 2 for drums and sampler player.

What you think about this? is more consistent:

Thanks again

You're definitely going to have to rethink this. You need some basics such as mixing, VCAs, filtering, etc. You also have too many trigger sequencers.

Hi Guys, My name is Ezequiel I'm from Argentina.
I'm thinking of putting together my first Eurorack system and I need help Because I'm a virgin in Eurorack terms and there are so many options.
I have a lot of Vintage Synth and Drum machines:
Yamaha Cs60, Prophet 5, Juno 106, Arp avatar, MS20, Sh101, Tr909 and Linn drum... so What I'm looking for with this is to find new sounds far away from the classic analog sounds and classical routing of vintage synths and new interfaces to improvise.
This is my first idea for my Eurorack is pretty expensive for my but is OK:

http://cdn.modulargrid.de/img/racks/modulargrid_145832.jpg

As a rookie in this My question is if I'm forgetting something substantial such as VCA, POWER SUPPY, MIXER, ETC
and also any suggestions are welcome

Thanks a a lot for you help!!

FYI: the active/bypass and active/spillover switches don't work like you think they would-- like you would see on a guitar pedal. the module was intentionally designed this way. Basically: 'bypass' engages the effect. You won't hear delay when in 'active'. Personally, I have no idea why it's this way, but I'm sure someone smarter knows the answer.

Anyone else have problems fitting this dang thing in their cases? I feel like the holes never line up. That's what she said.

Hey update here

I got a cool patch going with the qcv out of the rene into Mysteron

Creates a real sick melody.

Going to solder my first module nervous!

Any tips on assembling Atari punk euro?

yellow - clock in
black - unmodified clock
grey - divided clock (1/1, 1/2, 1/3, 1/4, 1/5, 1/6)

EDITED Jan 7th 2015, 20:03

TrueGrid MIDI fixed

I think there may be only two people in the world who use this, but for those I can happily report that the TrueGrid MIDI feature is working again!
As a reminder how to get it going:

• it still only works in Google Chrome
• you have to check the Enable Web MIDI API option by typing chrome://flags in your browser address bar
• make sure your MIDI interface is connected and running BEFORE you start the browser
• if in doubt restart the browser
• browse to TrueGrid (MIDI)/Growling MIDI Bass
• select the MIDI port at the bottom of the screen

I had weird fun connecting TrueGrid with my Octatrack...

PS: Have you seen this module?
EURO Brute -- MiniBrute Expander
I have no idea if this actually exists, but it looks cool.
-Ken

Greetings! I am a fellow noob, so don't take anything I say too seriously

I'm assuming you will be playing this from your MicroBrute.

OK, so it looks like you have two basic voices setup, with the standard VCO / VCF / ADSR / VCA. So far, so good. Suggestions:

Add some variety? Perhaps:
* Trade out one of the A-110s for the oh-so-trendy A-110-4 Thru Zero Quadrature VCO (which should be out this year)
* Trade one of the A-147s for a A-143-9 Voltage Controlled Quadrature LFO/VCO (which I think is a great value)
* Add some noise: A-118 Noise / Random

It looks like the MicroBrute has a fairly powerful internal sequencer, but may I suggest adding more sequencer?
* Use the A-118 as your random source.
* Sample gate/pitch from random with A-148 Dual Sample&Hold
* Gate sample drives an A-142-1 Voltage Controlled Decay/Gate for a random-length gate.
* Pitch Sample drives oscillator pitch
* NOOB alert -- I haven't actually done this, so extra glue may be required to get this to work!!!

Housekeeping:
* You probably want to reserve some space for utilities like the A-183-1 Dual Attenuator, or the A-183-2 Offset-Generator
* Even if you use stackable cables, you may still wind up needing a buffered multiple like the A-185-2 Precision CV Adder

There. I've used up all of your rack space, and blown your budget. You're welcome

EDITED Jan 6th 2015, 20:00

Just going to request the mixed 5U format feature again! I know you've tried and it's a bit of a PITA - it's just that's how most of us 5U/MU users make up our racks: with a mixture of both.

Cheers, and once again, thanks for such an incredible resource.

The intellijel Metropolis is quite fun to use.
Despite some of the problems i am having as indicated below, it's special programming method allows the user to come up with quite unique sequences.
However, i need to point out three things which i am not too happy about.

The first is the delayed CV output in comparison to the Gate output. This creates problem on some devices and especially with cv/gate-to-midi converters. I wrote to Intellijel about this and here is the reply i got from them.
'On the Metropolis we gave the maximum timing priority to the gate output. e.g. when you trigger it with a clock, the corresponding gate will always fire immediately. There might be a tiny latency with the CV output since it is generated by a DAC and it is slower to write commands to it. We never tested the Metropolis to be used with something like the Doepfer A192-2. In the future we may make a version of the metropolis that has midi. I will have a look at our firmware to see if there is something I can adjust. In the meantime if you have some way to introduce a small delay to the Metropolis gate output then you might be able to solve the problem.'
So i designed a small delay for the gate with a simple attack envelope circuit. That pretty much solves the problem except when a slide is converted to midi. If midi option is implemented internally then maybe intellijel could find a solution for the slide in midi as well. (maybe with the pitch wheel CC)

The second problem is not having the ability to start the sequence from a desired position. You should keep in mind that you have to mess around a bit to come up with something good. I would consider this to be the proper method of programming this sequencer just as it is so for the tb303 as well. The problem is that, when you come up with something nice, the sequence is most of the time shifted meaning it will not be starting from a correct point. Since it is not possible to easily shift a sequence you come up with (after messing around) to start it from the desired point, the only feasible way is to have the sequencer start from a desired position. This could easily be implemented in the firmware. This same problem applied to the original tb-303 firmware as well but if you install the social entropy's quicksilver 303 cpu add-on, you can shift a sequence on the 303 so that it can start from the correct point.

The third problem is the lack of an option for Hz/V output format for note cv. The only way to connect the metropolis to a Hz/V device is with an external V/oct to Hz/V converter. I think this should be implemented in the firmware.

Besides these problems it is a great sequencer.

Here is a link to my 'Portable custom modular sequencer with Intellijel Metropolis'

Also here is a link for my problem and my solution at gearslutz forum 'gate delay as attack envelope circuit'

EDITED Jan 7th 2015, 11:26

oh! I can feel it's getting closer to a realease date!! the suspense! I hope your wonderous machine will be ready for shipping soon. this video is amazing! excellent patch! can't wait!!

Turd soup with human thoughts....
Who's afraid of the big baboon, the big baboon, the big baboon
who's afraid of the big baboon, so fucking late in the history of the universe?
I'll fucking rip your ass out through your eyebrows, punk, and all ye who doubt me.

got back in sdiy and this is my backlog for 2015. happy soldering!

It doesn't come with any waves installed, you need to sample things into it, or load waves into it with this;
http://www.rampe-d.de/Software/A-112_Sample_Dump_Tool.html

Have not compared it to anything, and I doubt it would sound anything like those. It's an odd one, leaning more towards esoteric than recreating the old wavetable synths. I wouldn't get one expecting it to sound like a PPG, it's quite lo-fi, but pretty cool none the less. Check out this thread for some sound demos;

http://www.muffwiggler.com/forum/viewtopic.php?t=38635&postdays=0&postorder=asc&start=0

Have you done any comparisons between the Blacet Miniwave, the Megawave and the Tabula Rasa ??? What's the pros/cons ???

Does it have the PPG wavetables ???

I am very interested in learning synthesis and composing berlin school and psychedelic stuff. I am planning to purchase microbrute very soon to see if I am up to the task. I tried several years ago to enter computer music but I was quickly bored with mouse clicking in front of my monitor. Recently I discovered the re emergence of analogue synths and hoping to jump to modulars if I am successfull in creating soundscapes with microbrute which is considered by many a good entrance to analogue synths for beginners.

I have already been looking to modulars and if money and soul permits I would like to get started with a simple modular rack. Please have a look and give me your thought about alternative modules. Remember I am just starting... At this stage, after microbrute, I wouldn't like to spent more than 1000 euros.

Thank you all and have a great new year!

Here is the rack, I thought would be ok for a beginning.

EDITED Dec 30th 2014, 23:41

Added SynthTech e355 Morphing Dual LFO yesterday. This module is stunning! Glad it was my first lfo proper. !!

16 17 18 19 20

Hi Guys, looking for advice on my first case. I'm going to be getting the makenoise System 0, and upgrading to the 7 U makenoise CV bus case.

System 0 comes with:
DPO
Maths
Optomix

I'll be using an Elektron Analog Keys for control, and I also have a SEM pro that i'll be using until buy more modules. I want to eventually build a full system primarily for musical sounds as well as more abstract, rhythmic stuff.

This is my loose plan. any advice would be greatly appreciated; looking to avoid any obvious redundancies, and looking for advice on best module placement

thanks!

Attempt at a ribbon controlled monosynth, trautonium style. Lacks the frequency shifter but doepfer don't do one anymore and when they did it was a bit crap iirc.

Oh ... you're the 'Ultima Ratio Cascading Clock' guy! That's an awesome-looking module!

I looked at that one closely, but it seems to function best with an external clock. What do you use for a clock generator?

It works fine as a clock generator, you just loose the ability to control one of the two dividers in clock generator mode.
As an external clock you can nearly throw anything in it, a square wave from an oscillator works best.

I'm trying not to front-load too many obstacles to a successful start-up rack, which is why I'm trying to avoid too much DIY, but I did read through the build document, and it looked reasonable. Maybe not as simple as the Super Warp Generator, but pretty approachable.

Do you still have kits available?
-- kismert

I have a couple left. While the build is pretty easy basic knowledge in soldering can not hurt.
I plan to sell some of them next year as pre-build modules.

Oh ... you're the 'Ultima Ratio Cascading Clock' guy! That's an awesome-looking module!

I looked at that one closely, but it seems to function best with an external clock. What do you use for a clock generator?

I'm trying not to front-load too many obstacles to a successful start-up rack, which is why I'm trying to avoid too much DIY, but I did read through the build document, and it looked reasonable. Maybe not as simple as the Super Warp Generator, but pretty approachable.

Do you still have kits available?

@solitud: I have had this debate with myself as well: why program all day for work, then come home and code for fun? I guess there are two (maybe not very good) reasons: 1) my interest in Arduino programming is high right now; 2) I don't expect to be making Music for quite a while (I'll be mostly irritating the wife/friends/dog, especially at the start).

I don't wanna talk you out of it, I am pretty much in the same boat and even developed a module based on Atmega myself.
Modular synth is a hobby that goes way beyond making music for me. The community chats and never ending optimizations of systems are an integral part of it.
You just have to prioritize at one point since time is sparse and you can not do everything.
So if you wanna do your own sequencer, at least make it kick ass.