Tower Of Power #1 - Elka Solist 505 MIDI RACK conversion

video upload by R.O.T. Studios

"I'm going to hell for my sins, but first I'm converting this vintage Italian synth into a rack module, with MIDI control!"

Tower Of Power #2 - the Yamaha E-70 rack conversion

video upload by R.O.T. Studios

"This took 3 full days and was a LOT of work for the both of us... But I'm incredibly happy with the result!"

FLEA MARKET / FUSE / DIY - SYNTHI (with internal spring reverb) by Jacob Steel

video upload by jacobsteel

"DIY Synthi - piano stand test! #synthesizer #electronicmusic #synth #synthi #diysynthi #matrixsynth"

And a playlist in chronological order:


"Currently running the following:

Oscillators 1-4 - started out with the XR2206, schematic, pretty much from the data sheet. This part is the crazy chaos part. The XR2206 can be amplitude modulated as well as frequency modulated (here with a button) Oscillators 5-6 - Digital (this part will be CV volt-octave controlled) https://www.alldatasheet.com/datashee...

Envelope - 555-based envelope, similar to "the fastest envelope in the west" https://www.schmitzbits.de/adsr.html"

Playlist:

1. DIY SYNTHI first test all components
2. DIY Synthi longer demonstration….
3. DIY Synthi, stick demonstration
4. DIY Synthi - CV to Matrix test
5. Ölands Norra Udde - the Northern Head of Öland (DIY Synthi jam)
6. Alla världar som finns - (All Worlds That Exist) voice/lyrics Johan Holmlund
7. Synthi - Piano short improv

Off on a roadtrip to Pick up this Amazingly Quirky Vintage DIY Analog/Wavetable synth! The Mini Digi

video upload by LOOK MUM NO COMPUTER

"ANOTHER PIECE OF DIY SYNTHESIZER HISTORY By Bill!
Download the VST sample instruments of this instrument! And much more! And Support ‪@THISMUSEUMISNOTOBSOLETE‬ here :- / mini-digi-sounds-143564117"

Curtis based DIY synth. Also mentioned: Volage Controlled Analog Sequencers from February 1984 Electronics & Music Maker magazine.

Can We Fix This 1970s JEN SX1000? | Vintage Synth Rescue!

video upload by THIS MUSEUM IS (NOT) OBSOLETE

"Restoring the museum's JEN SX1000 back to life.
--------
Acid Solder Club Workshop Tickets
https://www.eventbrite.com/e/acid-sol...
--------
Support the Museum and see more videos and stuff Patreon / lookmumnocomputer"

[$11] DIY eurorack modular synth 5step Sequencer | Arduino nano based

video upload by HAGIWO

"My 88th original eurorack modular synth DIY projects.
Arduino nano based 5step CV/Gate sequencer , Buchla Easel inspired.
Digital control , Analog output.

working documents (schematics,code)
https://note.com/solder_state/n/nf6c2...

Please support me to continue projects.
In patreon you will find content about my background , technical information.
/ hagiwo

-------------------------------------------------------------
Repository of HAGIWO's DIY Modular Synth
https://note.com/solder_state/n/n54e0..."

Roland Future Design Lab and Neutone Introduce Project LYDIA

Press release follows:

A Technology Preview Exploring AI, DIY Culture, and the Future of Music Creation

Los Angeles, November 11, 2025 — Roland Future Design Lab, the advanced technologies research group of Roland Corporation, announces Project LYDIA, an audio processing platform preview created in collaboration with Neutone, developers of next-generation AI tools for musicians and artists. Project LYDIA merges Neutone’s trainable AI software with Roland’s hardware expertise, using a Raspberry Pi 5 single-board computer to deliver a compact, stage-ready prototype that reimagines DIY innovation for a new generation.

Bridging AI and DIY Creativity
Roland’s legacy in DIY music creation began in 1981 with AMDEK (Analog Music Digital Electronic Kits), a line of build-it-yourself kits that encouraged musicians to experiment with technology. Today, Roland Future Design Lab revisits that spirit, asking how modern creators can explore sound through emerging AI tools.

AI for Sound Discovery and Exploration
Powered by Neutone’s Morpho technology, Project LYDIA, named after DIY and AI, uses “neural sampling” to learn the tonal qualities of any sound and apply it to another in real time, with the sonic results ranging from highly musical to exotic and surprising. The current Project LYDIA mockup houses a Raspberry Pi 5 computer running Neutone’s special version of Morpho alongside Roland’s latest ideas for a simple, tactile control panel. Audio I/O is currently managed via a USB-connected Roland Rubix interface, with future iterations aiming to fully integrate I/O for a completely self-contained device.


AI Innovation at Roland
Project LYDIA builds on Roland’s growing exploration of AI as a creative partner for musicians. In 2024, Roland and Universal Music Group (UMG) jointly introduced the Principles for Music Creation with AI, a framework outlining shared commitments to ethical and artist-centered innovation.
“Roland has taken a leadership role globally in practicing responsible development with AI for music creation,” said Paul McCabe, Senior Vice President of Research and Innovation at Roland. “Part of being responsible is getting input from creators on what they find useful, helpful, or inspiring, and what ideas may not be welcome in their workflows. Releasing Project LYDIA as a technology preview allows us to demonstrate possibilities, seek community input, optimize, and improve.”

Shaping the Future Together
Project LYDIA debuted at the Audio Developer Conference taking place November 10 through November 12 in Bristol, UK, inviting feedback from the creative community to guide future research in AI-driven music tools. Musicians and makers can share their thoughts and ideas via a short survey here.

To learn more about the inspiration and technology behind Project LYDIA, visit Roland’s feature story on Roland Future Design Lab.

CLICK FOR MORE »

Солнце Сибири #Siberiansun #lmzvuk #analog #synth

video upload by LMZ

Солнце Сибири = The Sun of Siberia

Synthesizing waveforms with a frequency divider - a sequel

video upload by organfairy

"I show how it sounds at 4:17 and play it with a keyboard at 5:50

Winter is getting closer so this is the time of year when I start building things. The first of my projects is a revisit to an old idea of synthesizing waveforms with a frequency divider. This time the waveform in question is a sine wave and some other waveforms derived from it.
The old idea is here: • Synthesizing waveforms with a frequency di... [below]
The project is quite a bit more complicated than the previous 'digital' waveform synthesizer as the sine wave is very..... well....wavy, as there are no straight lines like there is in the triangle and sawtooth waves. Therefore I had to take a different approach using a couple of 74LS138 3-8 decoders and an awfull lot of resistors.

The music is my attempt at playing something relaxing on my Wersi Prisma DX-5 organ."

Synthesizing waveforms with a frequency divider

video upload 8 years ago by organfairy

"The demo starts at 4:15.

The normal approach to generating waveforms is to start with a sawtooth wave and then fold it into a triangle wave and schmitt trigger it into a square wave. But it is also possible to synthesize the waveforms by means of a frequency divider and some logic gates. Off course the generated waveforms will be somewhat 'edgy' but that can probably be filtered out and some people might even find it usefull.

The music is something I made back in 2005 on the homemade synthesizers I had then. It's not the best piece I have made but I am still willing to take responsability for it :-)"

08.20.2021 KESAKO Reverb - Feedback and blend modulation

video upload by batchas

7. Dezember 2021 Scrotum Lab

video upload by batchas

Isla Instruments Rhythm Imposer A/S

via this Vemia listing

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

"This is a heavily modified and circuit bent Alesis HR 16. The basic idea is that you can change the eproms and then mangle the sounds into oblivion by way of the knobs and switches which create all sorts of unpredictable and fairly brutal noises. The result can be anything from utter industrial magic to unusable garbage. Comes with a number of eproms incl. Korg, Linn DMX, Roland The machine is very unstable. Sometimes it works sometimes it just doesn’t. I have no idea how to make it more stable and when it comes on and produces sound, it’s absolutely random and unpredictable. The best way to think about this is as a sample source in that you have a tape running all the time and then pick and choose the best noises that come out of it. The great thing is that you would never ever come up with these sounds if you were to program them in a targeted and controlled manner. But on the other hand, it’s of course frustrating when it doesn’t come on at all. The starting bid is set accordingly. The buyer may wish to have a technician take a look at it."

CLICK FOR MORE »

Original Oberheim SEM cased with clone 1601

Note: links to listings 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.

"Oberheim 70's original SEM module + ARP 1601 sequencer modern clone module with PSU , panel and connectors making a mini modular in a custom case, ready to operate. 18 CV's in/out on SEM module. Everything works as expected, excellent sound and excellent cosmetic conditions. This synth comes from about à 10 years ago previous Vemia / UK."

CLICK FOR MORE »

Cherry Audio MemoryMode Synth

video upload by Craig Barnes

"This is the Cherry Audio MemoryMode VST realized as a standalone synth. There's a mini pc inside running the standalone VST and outputting to a DAC, the controller can store upto 999 patches."

WaterWork Preview 1

video upload by ParadisoModular

"This video shows a patch that I made over the last month that is all derived from independent water sounds. from I fade the straight audio in occasionally as a stereo pair, but also run it through many effects (e.g., a flanger, granular effects that give it more of a water slap sound, etc.) and fade those in and out too, plus also use the water sounds as triggers (coming from envelope followers) and clocks for lots of audio events, use the water amplitudes to affect various processes, vocode the water against chords, and also run the water sound through one of my frequency/voltage converters that is in turn quantized to a scale that works with the chords, and form different kinds of sequences through that. The water sounds drive essentially everything in this patch. Occasionally I drive my vocoded water sounds through a 'Mellotron' tracker pedal, crossfading the source between the raw and reverbed versions. And so on... - there is lots more going on in this patch. I've evolved it through several versions, tweaking different sounds and processes, and I have hours of this recorded at various stages in case I do something more formal with it. But here's a good 5 minutes of it recorded last week, to give interested folks a flavor of what it does. All autonomous - no real-time input from me - a generative patch essentially driven entirely by the water."

TANDY TRIP and friends late nite jam

video upload by NOYSTOISE

"Why not?"

Crazy Patroche TR9090

Note: links to listings 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.

"Very interesting TR-909 clone, apparently made from a French kit. Actually, this actual machine looks absolutely identical to the one featured on Crazy Patroche's website - so the one he made, rather than one made by others from the kit? Unfortunately it needs some work. Here's our tech James' report:.

Random hum cuts in and out. Snare sound faulty, no body and snappiness. One of the tuning pots perhaps wired backwards, clockwise tunes down. Still a great and presumably fairly simple project. Packing to include UK or Euro lead: 9GBP."

CLICK FOR MORE »

Debugging Serge Resonant Equalizer (analog modular synthesizer circuit)

video upload by Lantertronics

0:00 Introduction
2:05 Signals at wipers
3:08 Op amp outputs
4:21 Wild goose chase
5:31 Bad pots
7:26 29 Hz filter debugging
8:44 Lifted pads

Synth_Dexed on Teensy3.5 with ILI9341 TFT

video upload by Jan Ostman

MOLPO SYNTHESIZER review

video upload by the VAPE

LFO, Sequencer, Keyboard, Controller in a very small form factor: "Phantasmal Force"

video upload by Floyd Steinberg

"Distropolis Goods ( https://distropolisgoods.com/ ) sent me the Phantasmal Force MIDI controller and the Great Conjunction FM synthesizer/sequencer for review. In this video, I walk through the build process, explore the UI, and demo each mode in detail. Spoiler alert: the PF controller is worth a closer look.

Whether you're into modular MIDI setups, CC sequencing, or FM synthesis with a twist, this hands-on overview covers both devices in depth—without the hype.

Timestamps:
00:00 Intro – what's this?
00:19 Unboxing
01:01 Build instructions
05:48 UI overview
07:11 CC momentary mode
08:01 CC toggle mode
08:27 Note mode
09:00 Chord mode
09:44 Play/Stop mode
10:05 Program change ±# mode
10:24 Transpose mode
10:49 Pitch bend mode
11:37 LFO mode
12:12 Arpeggiator mode
13:03 CC sequencer
13:52 Real-world demo: playing chords over three arpeggiators while sweeping filters with CC LFOs
15:42 Phantasmal Force – conclusion
16:00 What is the Great Conjunction FM synth/sequencer?
16:30 The central idea
17:18 Building a sequence from scratch
20:57 Adding external effects and lush pads
22:15 Overall conclusion
22:47 Outro + bonus demo

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

NDLR HW Upgrade

video upload by Conductive Labs

"Hi All,
Follow me along to upgrade your NDLR! It took me 15 mins to to the upgrade. Maybe watch at 1.5x??? Just two things: remove the display tag, & don't scratch your faceplate!
Steve"

https://conductivelabs.com/