"My 88th original eurorack modular synth DIY projects.
Arduino nano based 5step CV/Gate sequencer , Buchla Easel inspired.
Digital control , Analog output.
"The Behringer BQ-10 is a 24-step analog sequencer that captures the essence of classic sequencing with the flexibility of modern modular workflow. Designed in Eurorack format, it’s hands-on, immediate, and built to spark ideas without screens or menus getting in the way.
Key features:
• Single 16-step or dual 8-step sequences
• Dedicated 8-step CV channel for filter or amplitude control
• Per-step trigger outputs for custom reset patterns
• External trigger input for clock sync
• Full CV control for deep modular integration
From evolving sequences to tight, synced pattern changes, the BQ-10 brings vintage character and real-time control straight into your setup.
Available now through Behringer distributors worldwide."
"So several ppl reached out about MSW-830 [see previous posts], and that device is on hold for now.
However! I do have something to announce:
MSW-820
2 VCOs with Saw and Pulse
16 Mode VCF based on the Caveman Totem filter
2 ENV, Noise and syncable LFOs, External In
Onboard MIDI
Eurorackable
Pretty much the analog section from 830.
Coming real soon. Price TBA"
"17 minutes of noodling with the almost-ready Tsunami.
two-stage wavefolder, with low and high breakpoints of each stage variable by potentiometers and collectively by a control voltage. Also with voltage-selectable inversion (invert/not invert)of input mix and voltage-selectable (limit/no limit) output limiting.
0:08 – Drum loop and synth with FX Track3: Drum loop with Delay FX, and Pitch Shifting. End Of Loop Pulse sent from drum loop to pulse an envelope in ENVY Machine. The envelope is patched to amplitude mod on ALGO. ALGO output is patched into Track 2, with Delay and Pitch Shift effects applied
01:07 – Ambient Piano treatment Track 1 Jazz piano loop. Tracks 2,3, & 4 are resampling from Track 1, and are set to Live Loop mode. Each track has random trigger from ENVY Machine, for resampling input from paino loop on Track 1.
01:58 – Live Keyboard loop recording, with drum loop and granular scanning trumpet solo ! Track 1: Using DAW loop style to record VECTOR WAVE keyboard sounds, then Track 2: using RETRO loop style to record bass line also from VECTOR WAVE. Drum break loaded from internal storage, Decimate FX applied. Flute sample sliced, slowed down, Wave Folded, and sliced-scanning modulated by knob recording on ENVY Machine.
A warm and bubbly 12 dB/oct analog Eurorack filter with dual voltage control of frequency. Low-pass, band-pass, and high-pass outputs in one compact 8 hp module.
With external signals, the filter stays soft, clean, and precise. Adding resonance gives a liquid acid tone (like a good filter coffee). When driven into self-oscillation, it produces sine waves perfect for deep bass, kicks, and percussive sounds.
An integrated VCA placed after the filter lets you shape both tone and dynamics in a single path – precise when clean, saturated and raw when pushed.
Raise the offset to move seamlessly from rhythmic sequences to heavy drones.
Background: We wanted to build a versatile Eurorack VCF/VCA with a balanced function-to-HP ratio. For us, ergonomics are as important as function – it should feel intuitive and spacious around the core controls.
And since we’re from Sweden, we couldn’t resist adding a little warmth.
"Olivella Modular's Furia is a 4-pole transistor ladder filter, based on the E-mu Modular 2100 LPF designed by Dave Rossum in the 1970s, paired with a discrete transistor VCA with tons of gain. There are no ICs anywhere in the audio path, so it has an authentically vintage sound, and it distorts in a really musical way. In this video, I give an overview of Furia’s signal path and controls and build a few patches to demonstrate how it sounds.
"FURIA is a discrete 4-pole ladder filter and a transistor VCA with a variable response CV curve control. It isn't 'just' a filter, but an all-around vintage-sounding sculpting and performing tool.
The filter section is based on the venerable E-mu Modular 2100 LPF, but unlike it, there're no ICs in the audio path - even the output stage op-amps are transistor based, both in the VCF and VCA sections.
As its name suggests, FURIA has plenty of gain on tap: the INPUT LEVEL knob starts distorting around 9 o'clock and interacts with the resonance in interesting ways, while the VCA and its X10 input switch can transform the filtered sound into nasty acid basslines - no external distortion required.
You can use the filter and VCA independently or in series, with an AMP CV input that's normalled to the FREQ CV input to facilitate a LPG-like configuration.
The AMP IN allows you to mix a signal into the VCA after the filter - for example, a higher register FM'd or wavefolded sine wave with a bassier filtered sawtooth from the LPF stage.
Unlike most ladder filters, FURIA's LPF is fully DC-coupled, though internal offsets may produce slight clicks at the VCA stage.
To remedy that, the DIP switch on the back lets you selectively AC-couple the VCF and VCA inputs and outputs, reducing clicks and offsets for audio purposes. It also allows you to change the VCF -> VCA normalling for series, parallel or independent use."
"This was the very first patch I did when I got the Drummertime in the studio (30 minutes ago hahaha). I just played around and that's the result. Bass triggered by the accent, drums from the amazing 6mod6 also by @tubbutec and @lpzwmodules
You can connect these two with special cable on the back so you don't have to use patch chords but well I was in a hurry and wanted to jam ;-)
More infos about the Drummertime & Tubbutec here: https://tubbutec.de/drummertime/
Have fun!!!!"
"Tubbutec Drummertime is a TR-x0x-inspired step sequencer for drums.
It is available in different Eurorack form factors, features large, tactile buttons, and has many powerful features.
Drummertime is optimized for live performance and allows quick programming and editing of drum patterns.
"Djupviks (@vikingsade ) Systral is an MS-20 topology stereo filter that refuses to behave. Built with red LEDs instead of the traditional green (because Djupviks), this dual-channel chaos machine gives you shared frequency cutoff with independent resonance per side, a continuously variable blend control between low-pass and high-pass, and analog noise normalled into the CV inputs that whispers instability through every self-oscillation peak.
🔴 KEY FEAT
URES:
Dual MS-20 topology filters red LED nonlinearity
Shared frequency cutoff, independent resonance per channel
Blend control: morph continuously from LP to HP
Analog noise normalled to CV inputs (audible at high resonance)
Independent gain controls per channel
Stereo tension 😵💫"
via BugBrand (For those in the US: check on availability with Noisebug per below)
"The 5FW design stems from ideas I used way back in the Old Blue days when I had the CTL1 Touch Panel - that design went through a few iterations during its 4 years of life, moving from just a control/preset device to incorporating some basic sequencing. Now I have taken it several steps further - expanding it out to 8 steps and increasing the control & sequencing options. The result is a powerful little hands-on sequencing hub!
It can link up with other clocking devices, especially the Sequence - indeed, I'm just beginning to investigate a joiner/expander for the pair that would allow the Control link to be easily switched on/off and also incorporate a handful of other useful functions.
In the meantime, the first modules are starting to ship - they can either fit in a larger system or sit in a 5FW case - perhaps an interesting addition to other banana systems!
US shipping & Tariffs:
There has been a fair bit of uncertainty because of new tariffs on shipments into the US (10% from UK vs 20% or more from most other places), alongside the ending of the De Minimis exemption for shipments under $800. Given that I send a fair amount to people in the States, these changes have proved worrying!
Thankfully I've been able to jiggle things around and have found that I can still send things easily & affordably - indeed, often including pre-payment of tariffs while not raising the overall shipping cost, and sticking with Royal Mail who have proved so reliable over many years of use.
Noisebug:
But, alongside these changes, I'm rekindling my prior work with the wonderful Noisebug store of Pomona, California. Just today I've sent a reasonable initial load - a couple of 1Frame systems, several mini-systems and a handful of red designs.
As you know, I've tended to work directly with people worldwide, but have kept in with a very few small & specific stores - Noisebug really fit the bill here for me! So if you've got requests, feel free to get in contact with them - or continue to nudge me direct ;)"
Everyone wants a little power, am-I-right? Well that's exactly what we've created - easy USB power in your modular rack to power MIDI keyboards, USB lights, small fans and other things that are a hassle to easily power otherwise.
Powered - 6hp (30mm)
I know we all love cables, but enough is enough! Most of the little accessories modular systems need are USB powered, and now there is a way to cut the cabling that goes beyond your rack. Install this slim module in your rack and you can power those pesky USB things such as: MIDI controllers, USB LED lighting for night plays and small USB fans. Put in one at either end of a big system to keep the power handy. There are a few things to keep in mind. Keep the power draw down to about 1000mA total - although the module can provide it, it might not be too kind to your rack power supply (You would be surprised how much power those cheap LED light draw - trust us, we looked!). Not designed or engineered to charge a phone - they make LOTS OF NOISE on the bus!
Just like every Swizzle Circuits module, it comes fully assembled, tested and ready to go. Just take it out of the package and plug it in.
Power Plant USB Module features:
- includes modular power cable. Uses the 12v DC Eurorack supply - no 5V DC needed.
- Fits right in your modular rack to give quick USB power anywhere.
- RED LED power indicator shines through the face to let you know it's ready.
- Both twin USB jacks are back-lit GREEN to help in the dark.
- Provides (2)-twin USB jack plugs for a total of (4).
- Can provide up to 1000mA of 5VDC power - see notes above-.
"MATRIOSKA is a modular VCA mixer designed as a layered structure: each level hides and reveals another. Six independent channels, each with its own identity, intertwine in mono or stereo configurations, building ever-changing soundscapes.
The first four channels include CV-controllable panners, allowing you to sculpt the space and create dynamic movements between outputs. Pairs 1+2 and 3+4 can act as independent crossfaders or as internal sub-mixes, while each channel remains free to exist independently through its own direct output.
The final stereo output (L/R) brings all the voices together into a single form. When used in mono, the L output automatically sums the signal, transforming Matrioska into a flexible node that can be adapted to any configuration of your system.
Within each sound, another sound.
Manual and other information on our website www.arcaico.eu"
Check with dealer on the right for availability and price.
"With the Resonator , we were able to recreate one of the most legendary resonator designs of all time — and make it affordable. This module recreates the resonator section of the iconic 1975 Polymoog, now enhanced with voltage control over every parameter, selectable frequency ranges for each resonator, multiple gain stages, an emphasis CV with limiter, and a bypass switch. It is strictly analog, with no LEDs or digital circuitry that could contaminate the grounding with hiss, ensuring a pure, clean analog sound — the dreamy, resonating tones at their finest.
Originally designed as an end-of-chain effect for our polyphonic modules, the Resonator also excels with a wide range of audio sources, including samples, drums, and even full mixes. Despite its extensive feature set, the design occupies only 16HP and remains highly affordable.
Check out the Resonator at:
https://tiptopaudio.com/resonator/
A note about video sound quality:
YouTube plays compressed audio, which significantly affects sound quality. Compared to the original recording, the audio will generally sound muddier and harsher in the highs. However, it still provides a good sense of the character and tone of the demoed device.
Patch Overview for this video:
The first few scenes feature a polyphonic sound generated by Triax8 through Octopass , then through Octogain (not shown in the frame), and finally into the Resonator . From the Resonator, the signal goes into the Z5000 Multi-Effect module , with a bit of processing applied via the mix knob. The sound is output in stereo, either directly to an audio recorder or routed through the Z-DSP for extra reverb.
In the final scene, Tiptop Audio drum modules generate hi-hats and snare, which are mixed using the MIX7 module and then sent into the Resonator. The bass drum comes from the Tiptop Audio ONE sample player. Octolfo , the module on the left, provides multiple fully independent LFOs to modulate the many CV inputs available on the Resonator."
1. Bastl Citadel Breakbeat Party - Stazma and Bastl Instruments
2. BASTL CITADEL! FX Wizard and Wave Bard Sampler comes to Eurorack! - The Unperson and Bastl Instruments
3. Bastl Citadel: A TWO-FACED friend with Samples + FX - Turbo Tambourine and Bastl Instruments
Check with dealers on the right for availability and price.
"Bastl CITADEL - Fortress of Modular Magic - is a Eurorack reimagination of the popular Kastle 2 semi-modular desktop device. The CITADEL comes with a full 3.5mm patch bay that offers the flexibility needed in the Eurorack format while maintaining the strengths of the Kastle 2 allowing it to stand on its own, and yet let it truly shine when patched with other modules. We’ve also added switches for hands-on control of the pattern generator. The Citadel provides the basic infrastructure needed to integrate Eurorack systems within the context of electronic music making: headphone output, TRS MIDI input and sync, tempo generator with divider/multiplier, USB MIDI (from the back of the module), stereo mixing, integrated LFO and Pattern generator and effects. All that makes it the perfect module for smaller and beginner systems while the fun and unique creativity of the Kastle 2 firmwares: the FX WIZARD multi-effect processor and WAVE BARD sample player will earn its place in larger setups.
🛠️ Get Wave Bard & FX Wizard at the same time 🔃 The Citadel comes equipped with a reversible front panel with WAVE BARD on one side and FX WIZARD on the other side. It also comes with our custom designed tool to make the panel switching as seamless as possible. You can load and try different Citadel/Kastle 2 present and future firmwares and updates with a USB port (on the back).
The Citadel might break a few rules of standard Eurorack design, but it does so in the name of instant musicality, fun, and effortless integration of Eurorack with other gear. The PITCH inputs on the WAVE BARD track 1V/Oct, are factory-calibrated, and there’s even dedicated calibration software to ensure a perfect match with your source."
"The 5FW design stems from ideas I used way back in the Old Blue days when I had the CTL1 Touch Panel - that design went through a few iterations during its 4 years of life, moving from just a control/preset device to incorporating some basic sequencing. Now I have taken it several steps further - expanding it out to 8 steps and increasing the control & sequencing options. The result is a powerful little hands-on sequencing hub!
It can link up with other clocking devices, especially the Sequence - indeed, I'm just beginning to investigate a joiner/expander for the pair that would allow the Control link to be easily switched on/off and also incorporate a handful of other useful functions.
Everyone wants a little power, am-I-right? Well that's exactly what we've created - easy USB power in your modular rack to power MIDI keyboards, USB lights, small fans and other things that are a hassle to easily power otherwise.
Powered - 6hp (30mm)
"Bastl CITADEL - Fortress of Modular Magic - is a Eurorack reimagination of the popular Kastle 2 semi-modular desktop device. The CITADEL comes with a full 3.5mm patch bay that offers the flexibility needed in the Eurorack format while maintaining the strengths of the Kastle 2 allowing it to stand on its own, and yet let it truly shine when patched with other modules. We’ve also added switches
