Buchla - MEMS 264 Sequence Distribution For Quad

video upload by DARK SPARKLER

"The MEMS 264 quad sample and hold / polyphonic adaptor distributes a set of quantized notes randomly from the MARF to 4 oscillators. These oscillators are each hard panned to the 4 corners of the room through the 227e. The Nensen Electronics Programmable Pulse Matrix sends probability based pulses to the 264 and the 4 channels of the 281. 4 random voltages feed into the decay inputs on the 281 channels to vary the length of each percussive “hit.” A CV processor, mixed with random and a pulse output from the MARF brings in and out the 277 delay, that also has its delay time randomly bouncing between 2 different settings. The oscillator’s wave shapes are introduced half way through to give 2 saw waves and 2 square waves. Cross frequency modulation between the 4 oscillators randomly turn on and off later into the patch."

E-mu Drumulator 8 Kits + MIDI upgrade board

video upload by Harry Axten

https://hkadesign.org.uk/d8km.html



"ROM switcher boards and third-party sound ROMs are nothing new as far as the E-mu Drumulator is concerned – in fact both were available while the machine was current. JL Cooper Electronics and others made 3-kit boards, and Digidesign (who later became Avid) got their start producing alternative sound ROMs for the Drumulator under their original name of Digidrums. That said, while the various alternative ROM sets are easy to come by these days, ROM switcher boards are not, and without one it’s a total pain to keep swapping chips in and out as you have to take out 8 screws on the underneath of the thing, lift off the lid, swap 5 chips over and put it all back together again.

8 Kits

I wanted a modification very much in the same style as my TR-707 ROM expansion board, with a number of kits that you can instantly switch between. As with that project, this is done without the need for any additional switches and instead uses a microcontroller to snoop on the front panel switch matrix. Kits are selected by holding down one of the bottom row of buttons marked 1-8 and pressing the ENTER button. The selection is remembered when the Drumulator is powered off too.

The Drumulator’s sounds are stored across 4x 16kB ROM chips, although they form one continuous region of memory. Thanks to this, and due to the way that they’re selected, it’s really easy to replace all four with a single large capacity chip. The 512kB flash ROM that I used can hold 8 kits worth of sounds, which works out nicely as that’s the stock sounds plus 7 of the Digidrums kits, including the famous Rock Drums kit:

Stock kit
Digidrums Alternate Drum Set 1
Digidrums Electronic Drums 1
Digidrums Electronic Drums 2
Digidrums Rock Drums
Digidrums Jazz Drums
Digidrums Latin Percussion
Digidrums African + Misc Percussion
Because each kit also has a corresponding modified program ROM (as the length of sounds, locations in memory and channel assignments are all hard-coded into the Drumulator’s firmware); the D8KM board also has an EPROM which contains the relevant OS for all 8 kits, and is connected to the Drumulator’s OS ROM socket with a ribbon cable. Fortunately the Drumulator doesn’t care if the OS ROM changes while the machine is running as long as they’re all the same version, which they are – ‘P3.00’, the final version.

MIDI

I chose also to include MIDI functionality as part of the upgrade, as most Drumulators don’t have it. E-mu did offer a retrofit, which has been cloned over the years, but it’s very basic and only does MIDI notes. The D8KM board on the other hand also offers the ability to sync the sequencer to incoming MIDI clock. Just set the Drumulator to external clock and if MIDI clock is available, it will automatically override the external clock signal and will also start and stop playback. If MIDI clock is not available the Drumulator will use the external clock signal as normal, including for the tape loading functionality."

ALAN R. PEARLMAN FOUNDATION ANNOUNCES INAUGURAL CELEBRATION OF THE CENTENNIAL BIRTHDAY OF ARP SYNTHESIZER FOUNDER, ALAN R. PEARLMAN

Press release follows:

ALAN R. PEARLMAN FOUNDATION ANNOUNCES INAUGURAL CELEBRATION OF THE CENTENNIAL BIRTHDAY OF ARP SYNTHESIZER FOUNDER, ALAN R. PEARLMAN, JUNE 7 AT THE MUSEUM OF MUSIC TECHNOLOGY

Kingston, NY - May 20, 2025 - This year marks the 100th birthday of the late inventor of the ARP synthesizer, Alan R. Pearlman. In honor of his pioneering innovations in electronic music, the Alan R. Pearlman Foundation will launch ARP@100: A Centennial Celebration of Alan R. Pearlman’s Legacy with EMEAPP at the Museum of Music Technology. A gala event kicks off a year’s worth of commemorative ARP centennial activities and takes place at EMEAPP, located in Harleysville, Pennsylvania, from 7 -10 pm.

June 7th Centennial activities at the museum include:

A live interview with the ARP Foundation’s director, Dina Pearlman-Ifil

Video excerpts from musicians, former ARP employees, and filmmaker Alex Ball’s celebrated ARP films

Performances on vintage ARP instruments by music pioneer Don Slepian and modular synthesist Ombient

The ability to try out a variety of synths

EMEAPP will unveil, at its Museum of Music Technology, a haven of vintage ARP history in which visitors will encounter an epic collection of ARP synthesizers, including the majestic ARP 2500 and a rare, early ARP 2502 with a cherry drop matrix. The iconic ARP 2600 Blue Meanie will be proudly displayed alongside an array of other ARP classics: the versatile Quadra, the expressive Soloist series, multiple iterations of the legendary Odyssey, the innovative Avatar, the powerful Chroma, the punchy Axxe, the compact Little Brother, and even a remarkable 16-Voice Electronic Piano – many of which will be playable!

Countless composers, musicians, and filmmakers worldwide have incorporated the ARP 2500 and ARP 2600 into their work, including early adopters Pete Townsend (in the “Who’s Next” album) and Elton John (in “Funeral for a Friend”). Stevie Wonder, an early adopter of the 2600, had his control panels labeled in Braille. The ARP 2600 was also responsible for the voice of R2-D2 in Star Wars films, and the 2500 was used to communicate with aliens in Close Encounters of the Third Kind.

Alan R. Pearlman’s legacy as an engineer and inventor began at an early age. A fascination with sound occupied his interest, and he spent time as a child building amateur radios. In 1948, as a student at Worcester Polytechnic Institute, he wrote, “The electronic instrument’s value is chiefly as a novelty. With greater attention on the part of the engineer to the needs of the musician, the day may not be too remote when the electronic instrument may take its place as a versatile, powerful, and expressive instrument.”

Attendees may reserve a spot at this exclusive celebration and fundraising event with a tax-deductible donation of $150 per ticket. The contribution includes complimentary wine/beer/other beverages, a selection of snacks, and a swag bag. Parking is Free.

The Museum of Music Technology/EMEAPP is located at 45 Mainland Road, Harleysville, PA 19438, just a short drive from the PA Turnpike Lansdale exits."

Bad Gear - SERUM for OLD PEOPLE

video upload by AudioPilz

"Welcome to Bad Gear, the show about the world’s most-hated audio tools. In times like these when normal people try to steer clear of questionable spending habits, true synth nerds are still stockpiling esoteric Eurorack modules, vintage restoration projects and overpriced VST plugins in a box.

Speaking of which, today we are going to talk about the Waldorf Iridium range. While young producers with an actual history of releasing music are currently benchmarking a Serum 2 torrent, these futurist top shelf instruments based on German technology seem to be the last missing piece in every middle-aged synthesist collection before their careers are destined to take off.

Chapters:
00:00 Intro tune
01:03 Overview Waldorf Iridium Core
01:59 Iridium Core vs. Iridium Desktop vs. Iridium Keyboard
02:22 Wavetable Synth Engine
02:32 Virtual Analog Synth Engine
02:49 Particle ( Sampler , Granular Synth )
03:15 Resonator ( Physical Modeling Synth Engine )
03:26 Kernel ( FM , Modular )
04:05 Filters, Digiformer
04:43 FX Section
04:52 LFOs, Envelopes, Mod Matrix
05:20 Bitimbrality, Touch Screen, Buttons
05:53 Sequencers, Arpeggiator
06:05 Connectivity, Pricing
06:25 Hate Screen
06:51 Jam 1 ( Fast Techno )
07:43 Jam 2 ( Drum'n'Bass )
08:52 Finale ( Melodic Techno )
09:23 Verdict
10:34 Patreon Sound Design Shoutout"

Schober Organ Corporation Tunesmith

Note: Auction links are affiliate links for which the site may be compensated.

via this VEMIA listing

Click the auction link on top when you get there for additional listings.

VEMIA is Peter Forrest's auction house. He is the author of The A-Z of Analogue Synthesizer Books.

"SCHOBER TUNESMITH (new start price to allow bids from outside the seller's tax region) Very rare monophonic transistor synth, single oscillator, circa 1968, sold as a kit or pre-assembled. The voice switch activates different static filters, providing 6 markedly different tones from bright sawtooth to mellow triangle. This short video [posted here] of the same model clearly shows the sounds ---- I read that the keyboard is a Pratt-Reed that uses series resistance rather than a matrix. This model for auction has clear strong sound with almost no hum whatsoever. The main problem is the tuning is way off, and some notes glitch a little. Not difficult to repair, I would think. Also the vibrato is not working, probably just a bad resistor, should be easy to fix. Body is solid and in good condition for a 57-year old instrument, so it hasn't been knocked about. Keyboard and control panel are very clean, almost no scratches. Mainly home or studio use, probably. The three tools contained inside the lid are a complete mystery, which may be solved once you look inside the unit! While this is offered as a 'project' the encouraging thing is how bright and clear it sounds, and once tuning and vibrato are fixed, you have a very playable instrument similar to a Clavioline. It's a worthwhile project, I would say. Power is 105-120V 50/60 cycles, with a 2-pin US-style mains plug. I've given it a very low start price. SHIPPING: This Tunesmith is located in Japan, and weighs (packed) approximately 7kg. Discounted shipping to UK/Europe/USA will be £30 surface, £80 air. For other countries, please enquire."

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EMS Synthi AKS

Note: Auction links are affiliate links for which the site may be compensated.

via this VEMIA listing

Click the auction link on top when you get there for additional listings.

VEMIA is Peter Forrest's auction house. He is the author of The A-Z of Analogue Synthesizer Books.

CLICK FOR MORE »

Mystery Vintage Matrix Pump, Tim Smith DIY & Vintage EML

Pictured are a few interesting items for sale from Mike Berman. You can find them here.

I asked him if it would be OK to capture the pictures here as I've never seen the "matrix pump" before. He gave me the all clear. Note this is the first post to feature one. This is a rare piece of synth history.

All Mike knows about it follows: "For me, the nature of the Matrix pump and its affiliation with EML is pure speculation. I always assumed it to be, at best, an unfinished one-off. If you magnify the photo you can read the labels on the controls and they are intriguing. The multi-pin socket on the left side of the MP accepts the same plug that EML sequencers use. That section is labeled 'Synto Interface'. I experimented with various patches and found some functionality in a few of the controls but I don't recall specifics beyond that. "

Below that you can see The Tim Smith box featuring the following section: Explonental Amp, Noise Generator, Lag Processor, and ENV/Gate Generator. I asked Mike is Tim Smith the same Tim Smith that was the Western Regional Tech Rep for Sequential Circuits , Arp, Moog and also contributed to the famous Vintage Synthesizers book and articles in Keyboard Magazine. He's not sure but believes it is.

Further below you'll find the MODEL EML-200, MANUAL CONTROLLER EML-300, multi-pin cables, EML 400 : EML 401, EML 500, EML POLY-BOX, X-Y CONTROLLER

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Analogue Solutions TC5000 Synthesizer: "Drenched Sweeper" Sequence No. 301

video upload by Analogue Solutions

"Here’s a new sequence, 'Drenched Sweeper' from the Analogue Solutions #TC5000 Patch Pin Matrix Synthesizer—recorded with no external instrumentation, FX, or processing.

With the TC5000’s vast sonic range, no single video can fully showcase its capabilities. We’ll share more sequences to highlight different aspects of its sound design potential.

About the Patch:

The TC5000's pin matrix provides extensive routing options, allowing for highly intricate and dynamic patches. A single pin can introduce subtle nuances or completely transform the sound.

In fact, the complexity of just one patch could warrant an entire essay!

This sequence features multiple waveforms from 3 oscillators, 2 filter types, Dual EG module 5012, Sequencer, and the Preset Voltage module 5052 (randomized with noise), along with the Mix-Sequencer module 5100 (providing the pulsating effect) -- this module is essentially two 4-input mixers. The channels, however, can be muted/switched on/off in the sequencer, in time to either an internal or external clock."

Original Sequential Circuits Prophet 10 (1016)

Note: Auction links are affiliate links for which the site may be compensated.

via this VEMIA listing

Click the auction link on top when you get there for additional listings.

VEMIA is Peter Forrest's auction house. He is the author of The A-Z of Analogue Synthesizer Books. Pic of the inside below.

"Vintage Sequential Circuits Prophet 10 Dual Manual Keyboard Synthesizer with Flight Case This Prophet 10 is in very good condition, and is fully functional, although the Braemer tape drive has not been tested. Has factory MIDI and sequencer, and the original blue Prophet-10 flight case on wheels. This may be one of the last Prophet-10s made, as the S/N is 0444. It's big and heavy!! Includes power cord, electronic copies of the operation manual and service information, and one original Sequential footswitch. The flight case foam is serviceable, but could use replacement. The synth is wrapped in plastic within the flight case. Full pictures are here [captured below]. By far the most prevalent of the original Prophet 10 models, the Prophet 10 Rev3 was a better built version than the previous 2 iterations for more consistent and reliable performance. It used Curtis Electronics Manufacturing chips, and featured 2 VCOs per voice, a low pass resonant filter with ADSR, LFO, & cv/gate controls. This rarely seen monster analog synth is by far one of the fattest and nicest vintage synthesizers.

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Technos Acxel Resynthesizer, HxC, AS SEEN

Note: Auction links are affiliate links for which the site may be compensated.

via this VEMIA listing

Click the auction link on top when you get there for additional listings.

VEMIA is Peter Forrest's auction house. He is the author of The A-Z of Analogue Synthesizer Books. "This potentially wonderful instrument is silent at the moment. We have had it here for two years or so, but time has run out and it needs to go to another person who can finish off the process of getting it 100% again. It had power supply and disk drive issues. We have replaced the disk drive with an HxC drive, which contains everything that was on the floppies. Most of the OS floppies seem to have been corrupt or non-functioning. There is more work that needs to be done to the power supply / supplies. Both supplies are switchable 110/240V. The gas struts which should support the Grapher at an angle have given up holding up anything, and need to be replaced.

Cosmetically there is one superficial scratch above the Grapher's LED matrix, and the Solitary case front is not in brilliant cosmetic order.

It is serial number 990-0004-151. As there were apparently less than 40 of these made, I'm not sure why it has a long serial number. It has its original manual, original floppy disks in a case, the stunningly solid (military-grade?) custom flightcase, and the redundant (faulty) disk drive.

We believe this version is a Studio System, with eight voices (all with individual outs) and including the all-important Acxelizer for control and creation of voices.

There is some good info online. For instance EMEAPP published this great rundown: https://emeapp.org/2019/11/19/the-technos-acxel-resynthesizer/"

See this post for demos from the creator of the Acxel Resynthesizer. Also see the Technos label for additional posts including demos.

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Introducing SEOK Synthesizers - Handcrafted Synthesizers from Sweden

SEOK x Artist // John och Julius //video upload by SEOK synthesizers

"⚠️ WARNING: This video contains flashing lights!

What you see is an improvisation within a limited concept.
Big thanks to ‪@johnochjulius‬ for kicking off our new YouTube series SEOK x ARTIST!

📷 Photo, visuals, and editing by the artist.

🔗 More from the artist:
🌍 https://johnochjulius.xyz/
/ johnochjulius

SEOK x ARTIST

A collaboration where an artist unleashes their creative madness on our gear. They dive in, explore, and shape their own workflow within a set time. In the end, they create something - be it a live improvisation, a track, or pure experimentation. We capture it all, letting the artist share their insights and experience along the way. Raw, fun, and authentic. The way good music should be made!"

SEOK - PHASES - phase shifting clock divider [DEMO no talk]

video upload by SEOK synthesizers

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Sequential Pro 2 w/MONO Custom Dave Smith Premium Bag

Note: Auction links are affiliate links for which the site may be compensated.

via this listing

"mint condition Sequential PRO-2, the versatile and powerful analog/digital hybrid synth that combines deep modulation options, a fully hands-on interface, and cutting-edge design. Whether you're a producer, live performer, or sound designer, the PRO-2 delivers a vast array of possibilities, from lush pads to gritty basslines, with the warmth and character that only a Sequential synth can provide.

This PRO-2 has been carefully maintained in a smoke-free studio and is in flawless condition. To top it off, it comes with a MONO custom Dave Smith premium case, providing maximum protection and style for your synth.

Why You Want This PRO-2:

Hybrid synthesis – Analog signal path with digital effects, offering the best of both worlds
4-pole Ladder Filter – Classic Sequential sound with a twist of grit and warmth
Dual Oscillators per voice with waveform modulation, noise, and sub-oscillators
Deep modulation options – 4 LFOs, modulation matrix, and more
Hands-on control – Knob-per-function interface for intuitive, real-time manipulation
Sequencer & Arpeggiator – Up to 64-step sequences, great for live performances or studio work
Built-in Effects – Delay, Reverb, and Distortion
Includes MONO custom Dave Smith premium case – Perfect fit and rugged protection for your gear
This PRO-2 is a dynamic, hands-on powerhouse that’s sure to inspire your music. Don't miss out on this opportunity to own a mint condition synth with top-tier protection. Get it before it’s gone!"

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Supercritical Synthesizers Redshift 6 Gets a Firmware Update

press release follows:

Supercritical Synthesizers have just released the first firmware update for the Redshift 6 and it’s available at our website.

The Firmware Update 1.1 brings USB MIDI, new modulation destinations such as: Character, Detune, envelope Attack, Decay, Sustain & Release and also new presets from Kebu.

VERSION 1.1

Added
• USB MIDI
• New modulation destinations: Character, Detune, envelope Attack, Decay, Sustain & Release
• New presets by Kebu

Improved
• LFO Trigger parameter is now named Sync

Fixed
• Fix reversed visualizations of LFO Log vs. RevLog waveforms
• Dual Osc Noise level is now affected by DCO env in para mode, and by gain scaling related to character and drive,
as it should be. This may affect the noise level in some presets.
• MIDI notes now stop when:
- All Notes Off CC123 is received
- MIDI channel setting is changed
- MIDI Panic is pressed from front panel
• Repeatedly pressing MIDI Panic no longer crashes the synth
• On fast envelope decays, the envelope no longer gets stuck to its previous sustain value, when sustain level is changed
or modulated
• Fix potential loss of autosave or presets
• Minor visual fixes

The next Redshift 6 firmware update is already in beta testing and is expected to be released in March.

Supercritical’s Redshift 6
Supercritical’s Redshift 6 is a 6 voice polyphonic analog synthesizer that combines technology from Supercritical’s previous products, the Demon Core Oscillator and the Neutron Flux Filter.

Redshift 6 is a true Sonic powerhouse. With 16 oscillators per voice and a 4-pole analog multimode filter featuring drive and character controls, it effortlessly delivers everything from super saw stabs to lush pads and from unison basses to vintage poly synth sounds. The Redshift 6’s 4 envelopes and 4 LFOs combined with complex, but super easy-to-assign modulation possibilities and mod matrix offer endless possibilities for sound design.

For more in-depth info, including technical specifications, please visit the Redshift 6 webpage:

https://supercriticalsynthesizers.com/redshift6/

Meris Reveals the Enzo X

video upload by Meris

NEW: Meris Enzo X Overview (Official) 4k

video upload by Meris

"UNVEIL THE UNIVERSE WITHIN

Enzo X is a supernova expansion from the original Enzo into the highest quality and most flexible polyphonic synthesizer ever created in a pedal format (with no pickup installation required). All of our passion for pro audio has made it into both the algorithms and hardware performance of this pedal. Enzo X combines 5 synth modes and incorporates those into a modular system UI/architecture from both award winning LVX and MercuryX pedals. Including: 6 polyphonic voices (each voice includes a set of 2 oscillators, filter, filter envelope, amplifier envelope) + 3 reverbs are adapted from Mercury X (Prism algorithm) + 5 Drives (including Bitcrush) + full stereo 2.5 second Delay + 5 modulation types. To make this complex system immediately intuitive to navigate, we again leveraged the simple and easy to use UI first developed for LVX. Exploring the factory presets (and pressing the HOLD MODIFIER) will be your gateway into experiencing the power and flexibility within this instrument. As you discover all of the new ways to create with Enzo X, your own sonic visions will be unveiled.

0:00 - Intro
0:29 - Main Controls
0:54 - Size Comparison
1:07 - Back Panel Connections
1:27 - Preset Page
2:09 - Pitch
2:25 - Filter
2:41 - Mod
2:58 - Level
3:45 - Synth Modes - Mono Synth
4:23- Poly Synth
4:44 - Arp Synth
5:14 - Dry Mono
5:43 - Dry Poly
6:13 - Edit Page
6:45 - Categories
7:18 - Oscillators
8:39 - Filter
10:07 - Filter Envelope
11:04 - Amp Envelope
12:00 - Drive
12:48 - Clock
13:14 - Ambience
14:14 - Modulate
15:05 - Text View
15:32 - Modifiers
16:48 - Expression
17:59 - Tuner
18:51 - Saving
19:32 - MIDI Note In

Learn more here: http://www.meris.us/product/enzo-X"

Meris Enzo X: the best synthesizer pedal EVER?!

video upload by Devin Belanger

"Demo, tutorial, walkthrough and review of the brand new Meris Enzo X synthesizer guitar pedal. The EnzoX builds off of the LVX and MercuryX workflow and top sound quality, but aims to be the most powerful synthesizer guitar pedal ever made. With midi playability, a full mod matrix and arpeggiator, and great effects, this is one powerful pedal!"

0:00 - intro jam, what is EnzoX?
2:48 - original demo song
4:37 - how I used the pedal
6:23 - can it Blade Runner?
7:29 - pedal UI walkthrough
9:17 - oscillator and voice mode section
13:28 - filter and envelope section
18:06 - drive, ambience and modulation fx
26:49 - mod matrix, aftertouch and other settings
30:26 - final verdict & who this pedal made for
34:07 - outro jam

The Pedal That Turns Your Instrument into a Synthesizer | Meris Enzo X

video upload by bad snacks

TIMESTAMPS:
0:00 - 2:40 Intro
2:41 - 5:17 Overview
5:18 - 8:37 Mono Synth Mode
8:38 - 12:06 Poly Synth Mode
12:06 - 14:16 Arp Mode
14:17 - 16:59 Dry Modes
17:00 - 18:37 Extra??
18:38 - 20:08 Outro/Announcements

Used Erwik Musikelektronik Voltage Controlled Multimode Filter - 1 of 12

via CONTROL.

This appears to be the first one to be featured on the site. Apparently only 12 were ever manufacturered, however, Doepfer's A-107 is based on it.

[Side note: CONTROl is also having a holiday sale on new items. Enter HOLIDAY10 for 10% OFF. The Erwik Musikelektronik is used so it does not qualify. Just sharing for those interested.]

Details on the Erwik Musikelektronik Voltage Controlled Multimode Filter follow:

"Based on the filter used in the Oberheim Matrix 12 and Xpander.

This Matrix 12 filter is a limited edition module, with only 12 filters produced by Jesper Johansson (ERWIK) in Sweden. It was produced in the end of the 90s.

Features:

2 Audio inputs. 2 VCA´s adjusting the input signals (manual or with CV). Filter "cutoff" and "Q" controllable manual or with CV. 1 VCA controlling the output signal (manual or with CV). Filtertype can be selected manual or with trigger at input "UP" & "DOWN".

Software: Switching on your system you can choose between 4 different modes.

No button pressed - normal function.
Downbutton pressed - rotating filtertable.
Upbutton pressed - faster triggering/switching filtermode.
Both buttons pressed- rotating filtertable as well as faster triggering/swithing filtermode.
The display gives an indication of 'r' or 't' as well as both.

Filters:

1 pole Low
2 pole Low
3 pole Low
4 pole Low
1 pole High
2 pole High
3 pole High
2 pole Band
4 pole Band
2 pole Notch
3 pole Phase
2 pole High + 1 pole Low
3 pole High + 1 pole Low
2 pole Notch + 1 pole Low
3 pole Phase + 1 pole Low

Very limited edition (Only 12 manufactured worldwide)."

Meet DOTS - An open hardware, open source DIY eurorack module

video upload by Johannes

"DIY eurorack module web teaser
www.d-o-t-s.net
https://github.com/johannesstrueber/dots"

From the manual:

The module features six outputs and two inputs. Each output is numbered from 1 to 6 and is accompanied by an LED dot that indicates the current state of the output. The inputs consist of a Clock input, which receives clock signals and triggers specific actions, and a CV input, which functions as a trigger for various control voltage signals. When a clock signal is detected, the corresponding LED will light up red. When an output is active the corresponding dot will light up white. You need to save all settings in the CONFIG menu.

The primary navigation tool is the rotary encoder, which allows you to toggle between different states and menus by pressing it. The module includes a potentiometer labeled Range, which is used to adjust a delay parameter.

Sequencer

In the sequencer program menu. You see a matrix of six channels (rows) by 16 steps (columns). Each channel can be toggled on or off by pressing the encoder. The current step is indicated by a white dot. The sequencer can be started and stopped by pressing the encoder. You can access the sequencer settings by scrolling the first element left or the last element right.

Random Trigger/Gates

The Random trigger program allows you to set a probability for each channel to trigger. The probability is set by the range potentiometer. The probability is displayed as a bar graph. The program can be set to trigger all channels at once or in a sequence.

Clock Divider

The clock divider program allows you to divide the incoming clock signal by a factor. Each circle represents one channel. If filled it will trigger the output. The divider can be set to a specific number or a mode like power of 2, prime numbers, or fibonacci numbers.

203 systems Mystrix Pro: An open source MIDI pad controller!

video upload by Floyd Steinberg

"Here's the Mystrix Pro ( https://203.io/ ), a 8x8 MIDI pad controller with an open source operating system. You can code your own applications running on this. Table of contents:

00:00 split keyboard demo
00:16 introduction
00:48 what's in the box?
01:23 features
01:42 the operating system and apps
02:26 the "note" app
03:07 menu button and settings menu, octave selector
03:30 root notes display
03:34 keyboard split
04:08 vertical or horizontal splits
04:29 brightness
04:45 colour setup
04:53 scale selector
05:25 enforcing scales
05:48 overlap
06:29 midi channel selector
06:44 velocity on/off switch
07:05 system settings
07:18 brightness and screen orientation
07:35 performance app / amethyst player / unitor
08:06 polyphonic aftertouch demo
09:00 installing the development environment (Visual Studio Code) and compiling the OS
10:57 conclusion
11:41 kkthxbye

Links:
Mystrix WIKI https://matrix.203.io/docs/Mystrix/Ge...
GitHub: https://github.com/203-Systems/MatrixOS
Visual Studio Code: https://code.visualstudio.com/
Amethyst Player: https://play.203.io/

HÄLP ZIS CHANNEL
https://www.patreon.com/floyd_steinberg
https://floydsteinberg.gumroad.com/
https://floydsteinberg.bandcamp.com/"

VINTAGE SOVIET ANALOG SYNTH MOD - PIF XL (USSR Toy Synth)

Note: Auction links are affiliate links for which the site may be compensated.
video upload by VintageShopVideo

Never thought of it as a chiptune synth.

via this listing, also on eBay

CLICK FOR MORE »

ETI International 4600 Vintage Semi-Modular Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.

via this listing

"This is a large semi-modular synthesizer, designed in Australia and released as a kit by Electronics Today International magazine in 1973. The large aluminium panel pivots forward for maintenance. Its 22x22 matrix switchboard, joystick, complex modulation and feature set is reminsicent of a larger EMS VCS3, a comparison enhanced by the use of genuine Cliff "little Dalek" knobs.

The main modules in the 4600 design were repackaged for the (smaller) ETI 3600 and the lightly larger Maplin 5600 kit synthesizers. Its notable features are volts-per-herz VCOS (rather than volts-per-Octave linear VCOs), complex Transient Generators that are like simple three stage sequencers, and a different-sounding VCF.

This is a rare, powerful and unique synthesizer that needs some TLC from a competent builder to unlock its potential.

STORY

In the early 80s before it had been completely built, it suffered damage (the plaster ceiling collapsed on it, because of a shoddy repair job after the previous tenants, a punk gang, had a "demolition party" that destroyed all internal walls). The keyboard was destroyed and there seemed little reason to replace it (the first 4600 keyboard circuitry was problematic and had been replaced by a design from the Fairlight team.) There was some scratches to the case and a lot of dust, though the pots did not seem scratchy.

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Machina Bristronica 2024

video uploads by sonicstate

Playlist:

1. Bristronica 24: MyVolts The Silent Alchemist Nears Shipping

We caught up with Caroline who gave us the latest update to the *Silent Alchemist*, a versatile power hub designed for musicians. Featuring five isolated USB-C outputs and a high-wattage sixth output capable of delivering 100 watts, the device can power a Mac with the remaining outputs providing 20 watts each. Its independent circuits ensure noise-free operation, catering to a variety of devices including the Dreadbox module and Sysmo slope generator.

The Silent Alchemist uses innovative step-up power tips to convert USB-C input to the correct voltage for various devices. There's also new feature: an uninterruptible power supply allowing seamless transition between wall and power bank sources. Also introduced were updated cables, such as silver candy cords and floating ring TRS to TS cables, expanding connection flexibility. The Silent Alchemist is expected to be available in December with a competitive pricing strategy.

More Info:
https://myvolts.com/

2. Bristronica 24: Circuit Happy ML2M Clock Sync module updates

At Bristronica 2024, we caught up with the creator of the *ML2M*, who introduced us to the latest version. The ML2M is a compact Eurorack module with Wi-Fi capabilities, allowing seamless synchronization with Ableton Live, Bitwig Studio, and iOS music apps using Ableton Link without the need for cables. It either connects to an existing network or creates its own, ensuring robust sync even in environments with unreliable Wi-Fi. The module, which retains its 2HP size, now features MIDI integration through TRS jacks. Users can access a web interface to configure each output for different clock divisions and reset triggers, making setup straightforward and flexible.

Alongside the ML2M, there's also the Missing Link Junior. This desktop version offers the same functionality but in a box format, complete with MIDI and CV clock outputs. Both products are now accessible, with a starting price of $250.

3. Bristronica 24: Archaea Exchange Patching Module

At Machina Bristronica 2024, we caught up with Arran from ‪@archaea_modular_synthesis‬ who presented the *Exchange Module*. This programmable patcher, a year in the making, evolved from its early prototype stage to a fully functional module. Arran explained how the Exchange can route synth voices via a beam controller and three exchange modules installed within the skiff, allowing for versatile patching. Operating like a matrix patchbay, it enables users to select inputs and outputs with the push of a button, create presets, and chain multiple modules for synchronized patching.

Communication between the modules occurs over the Eurorack power bus as well as over MIDI via the USB-C connection. The Exchange maintains analog integrity, ensuring there’s no conversion latency. The forthcoming release expected in late November 2024, includes a USB-driven editor for enhanced control capabilities.

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