MATRIXSYNTH: DIY



Showing posts with label DIY. Show all posts
Showing posts with label DIY. Show all posts

Monday, August 12, 2024

Bass Bot.mod with BA662


video upload by Alexey Taber

via AMSynths:

"The BA662 is a custom made DC controlled variable transconductance amplifier (or OTA) that Roland had manufactured by Rohm from 1978 and is now obsolete and very expensive. There are two types of chip with different suffices; the A version has been selected for lower offset than the B version. They are further classified by gain/gm. The BA662B can only replace another BA662B, whilst an A can be used in either application.

To quote Roland from the 100M Service Manual: 'color has great importance in the circuits of some models'. However there is nothing mystical about the sound of the BA662, it is just a reasonable good OTA chip which is often carefully matched and selected."

And via Sunshine Jones:

"The Roland BA662A VCA chip is the Voltage Control Amplifier IC from the Roland SH-101, TB-303, Juno-60, JX-3P etc. which is a part of what makes it sound so wonderful. These can also be found in the Jupiter-4, the Jupiter-8, and MKS-30,50 and 80. They have counterparts – The Roland BA662B (B stock versions of the A) and also a cousin IC the BA6110 which is similar, and looks virtually identical under a scope, but the power comes from negative rather than positive, and so it won’t work exactly the same way."

Saturday, August 10, 2024

PAIA DIY MODULAR SYNTH w/ Docs

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


via this listing

Thursday, August 08, 2024

CMOS HI-HAT + WHITE NOISE / making a drum machine EP 4


video upload by LAURI’S DIY CHANNEL TV

All parts here

"This is the bigger brother of the XOR cowbell! It has 6 oscillators going through 4 XOR gates, making the sound more complex and inharmonic, perfect for metallic sounds like hihats and cymbals. The next video is going to be about the high pass filters i'm using a lot in the video! They help a lot with this circuit, making the sound way more usable as a hi-hat. I'll put the video out in a week or two!

Schematics: https://www.dropbox.com/scl/fo/eab78o...

The logic noise article this circuit is based on: https://hackaday.com/2015/04/10/logic...

About the white noise generator on Synthnerd's website: https://synthnerd.wordpress.com/2020/..."

Tuesday, August 06, 2024

Vaemi DIY Workshop 6 Ağustos 2024


video upload by Vaemi

Google translation from Turkish follows. Original Turkish below that.

"We will assemble all the parts from scratch and make an electronic instrument, namely a synthesizer.

We will provide all the necessary equipment as VAEMI.

Technical information on the subject will also be shared.
Contact us to join the workshop.

For information and applications: vaemisynth@gmail.com

DIY Analog Drone Synthesizer Workshop

Drone Synthesizer Technical Specifications:
• 4 Voice Polyphony
• 4 Analog Oscillators
• Touch Areas and Gate Keys
• 4 Analog Envelope (Sustain, Release)
• 4 Analog VCA
• 4 Channel Mixer
• 1 Analog RC Filter
• FM Modulation
• Can work with adapter or 9V battery
• Mono Output (1/8mm jack output)

We are organizing a repeat of our workshop on electronic circuit, synthesizer and musical instrument production and design by Efe Çakır.

A class will be created for the workshop. Participation is limited. The workshop will focus on the construction of a 4-oscillator analog drone synthesizer. The class will start at 11:00 on Sunday, August 18th and will last for 5-6 hours.

All PCB and electronic components of the synthesizer you see in the picture will be provided to you completely within the workshop fee. It is sufficient to come to the class without bringing anything with you. We will also provide the necessary materials such as soldering pen, solder, paste, speaker, battery. If you have soldered a few times before, these classes may be just for you. At the end of the class, the synthesizers you have assembled will be yours. At the beginning of the class, all electronic components will be delivered to you and a set of schematics and notes about our synthesizer will be distributed. After introductory topics such as “What is electricity?”, “Basic information about electronic materials used”, “Reading schematics”, we will proceed step by step by understanding how each section works in order of “What is an oscillator?”, “What is a VCA?” on the synthesizer. At the end of the lesson, we will all be playing our synthesizers together.

For your questions and applications, you can contact us via Efe Çakır (@ertanefecakir) and Vaemi (@vaemisynth) accounts.

In order to apply, you must make a payment before the workshop date. If you want to cancel within the last week before the workshop, no refund will be made."

Monday, August 05, 2024

BMC114 Diode Break Shaper


video upload by boogdish

"New waveshaper module. PCBs are available for DIY builders. Links to documentation, mp3 sound samples and purchasing info are found at:
https://www.bartonmusicalcircuits.com..."

BMC114 Diode Break Shaper Schematic Walkthrough




"This module splits a waveform into 5 bands of voltage ranges and then mixes those bands together with attenuverters. The break points between bands can be controlled with external CV. This allows for harmonically complex outputs that remind me of strings and woodwinds.

Compatible with 12V or 15V systems. The Pots are PCB mounted, but all jacks are off-board."

BMC115 Resonance Loop VCF


video upload by boogdish

"New voltage controlled filter design. PCBs and pre-assembled modules are available through my website. Visit the following link to download build documetnation and learn how to order:
https://www.bartonmusicalcircuits.com..."

BMC115 Resonance Loop VCF schematic walkthrough





"This is a diode low pass filter with patch points within the resonance path. This allows you to patch the resonance audio path through a filter or VCA to create interesting and complex resonances.
Compatible with 12V or 15V systems. The Pots are PCB mounted, but all other parts are mounted off board."

Moog Minitaur and Ferrofluid by Love Hultén


video upload by Love Hultén

"Custom Moog Minitaur for a client, incl a Keystep and ferrofluid visualizer"

Friday, August 02, 2024

Correction: Passive Mixing revisited


video upload by O.Z. Hall

"This video is a combination of a technical correction and a demonstration of a very inexpensive 2hp Passive Mixer kit from Synthrotek.com.

The error I'm correcting is in reference to Passive Mixing with a multiple. This error was in my System 55 Mixers video starting at about 2:30. [posted here]

Here's a link (not an affiliate link) to the product:
https://store.synthrotek.com/MIX-Kit_...
Here's a link to the build Assembly Instructions document:
https://www.synthrotek.com/kit-assemb...

TIMECODE

0:00 - Intro
1:30 - MIX Kit
2:28 - Use Cases for Passive Mixing
3:22 - Examples
4:02 - Mix Audio Waveforms
5:55 - Mix Low Frequency Waveforms
8:02 - LFO into Sample and Hold
9:50 - LFO into Quantizer
11:52 - Conclusion"

Monday, July 29, 2024

Vocoder for KORG NTS-1 mkII


video upload by boochow

"Vocoder for KORG NTS-1 mk2 is available from the link below for free.

https://boochow.gumroad.com/l/vocoder..."

Building the Arcadia Electronics PLL Organ Synth DIY Kit - Final Assembly


The next set of 5 videos including the final assembly have been added to the main build post here.

Sunday, July 28, 2024

Robotmakers build an ARP in 83 seconds


video upload by robotmakers

"We build a Korg ARP Odyssey FS Kit. All sounds of course made using the ARP Odyssey."

This Machine Is Designed To Simulate 1 Thing.


video upload by LOOK MUM NO COMPUTER

"TODAY WE LOOK AT Mary Lou's BIRD SYNTHESIZER OF DOOM."

Building the PLL Organ Synth DIY Kit: Step-by-Step Tutorials


video upload by Arcadia Electronics

Playlist:

1. Building the PLL Organ Synth DIY Kit: Step-by-Step Tutorial, Part1 - Keyboard Assembly.
In this video, Adam from Arcadia Electronics walks you through the first steps of assembling the PLL Organ Synth DIY Kit. We’ll cover the introduction to the PCB, how to correctly place the push buttons, and the initial preparations for soldering.

This is the first video in our tutorial series. Be sure to watch the rest for a complete guide to building your own PLL Organ Synth!
2. Building the PLL Organ Synth DIY Kit: Installing Optocouplers (Part 2)
In this second part of our PLL Organ Synth DIY Kit tutorial series, Adam shows you how to install the optocouplers. Follow along and make sure to check out the first video if you haven’t already, and stay tuned for the rest of the series for a complete guide to building your own PLL Organ Synth!
3. Building the PLL Organ Synth DIY Kit: Installing Slider Potentiometers (Part 3)
In this third part of our PLL Organ Synth DIY Kit tutorial series, Adam demonstrates how to install the slider potentiometers. Follow along as we continue to assemble the synth and bring it to life. If you haven’t seen the previous videos, be sure to check them out, and stay tuned for more in this comprehensive guide to building your own PLL Organ Synth!
4. Building the PLL Organ Synth DIY Kit: Installing Rotary Potentiometers (Part 4)
In this fourth part of our PLL Organ Synth DIY Kit tutorial series, Adam guides you through the installation of the rotary potentiometers. Continue following along as we assemble the synth and capture the iconic sounds of the 60’s. If you haven’t watched the previous videos, be sure to check them out, and stay tuned for the rest of the series for a complete guide to building your own PLL Organ Synth!
5. Building the PLL Organ Synth DIY Kit: Installing Spacers for Top Panels (Part 5)
In this fifth part of our PLL Organ Synth DIY Kit tutorial series, Adam shows you how to install the spacers that connect the top panels to the main board. Follow along as we continue assembling the synth. If you haven’t watched the previous videos, be sure to check them out, and stay tuned for the remaining parts of this comprehensive guide to building your own PLL Organ Synth!
6. Building the PLL Organ Synth DIY Kit: Installing Toggle Switches (Part 6)
In this sixth part of our PLL Organ Synth DIY Kit tutorial series, Adam explains the toggle switches and demonstrates how to install them. Continue following along as we assemble the synth. If you haven’t seen the previous videos, be sure to check them out, and stay tuned for the rest of this comprehensive guide to building your own PLL Organ Synth!
7. Building the PLL Organ Synth DIY Kit: Installing the Speaker and first Sound Test! (Part 7)
In this exciting seventh part of our PLL Organ Synth DIY Kit tutorial series, Adam walks you through installing the speaker and finally getting some sound. If you haven’t seen the previous videos, be sure to check them out, and stay tuned for more in this comprehensive guide to building your own PLL Organ Synth!
8. Building the PLL Organ Synth DIY Kit: How to tune the Keyboard (Part 8)
In this crucial eighth part of our PLL Organ Synth DIY Kit tutorial series, Adam demonstrates how to tune the keyboard using the built-in speaker we connected earlier. Follow along as we fine-tune the synth. If you haven’t seen the previous videos, be sure to check them out, and stay tuned for the final parts of this comprehensive guide to building your own PLL Organ Synth!
9. Building the PLL Organ Synth DIY Kit: Assembling Caps, Touch Pad, and Panels (Part 9)
In this ninth part of our PLL Organ Synth DIY Kit tutorial series, Adam shows you how to assemble the caps, touch pad connector, and panels. We’ll wrap up with a short audio test to ensure everything is working perfectly. Follow along and enjoy as we near the completion of the synth. If you haven’t seen the previous videos, be sure to check them out for a comprehensive guide to building your own PLL Organ Synth!
10. Building the PLL Organ Synth DIY Kit: Final Assembly, Inspection, and Testing (Part 10)
In this final part of our PLL Organ Synth DIY Kit tutorial series, Adam shows you how to install the slider caps and knobs, followed by a thorough inspection and final testing. Join us as we complete the build. If you haven’t seen the previous videos, be sure to check them out for a comprehensive guide to building your own PLL Organ Synth!

Wednesday, July 24, 2024

DIY Synthesizer by tubeuser303


video upload by tubeuser303

"Now the DIY Synthesizer called 'Cloud Synth' is complete.
You can here it in action."

Playlist:
Now the DIY Synthesizer is complete.
A whole DIY Synthesizer
DIY Moog Filter with Envelope Generator

Calm Synth Drone on Quord


video upload by Sound Workshop

"A little jam to show what #quord can do. It’s four sawtooth oscillators, a mixer, a filter, and a distortion. For half of the video I’m using the filter resonance as a fifth voice. The pitches it latches onto usually compliment the drone.

Still finalizing the design but I have parts on the way.

Circuit design by Decapod Devices"

Turning the DONNER D1 drum computer into a melodic sample player using this small script


video upload by Floyd Steinberg

"The Donner D1 essential is a digital, sample-based drum computer with a live- and step sequencer. @loopop did an excellent review already, so in this video, I focus on the basics and also code a small script that turns the D1 into a chromatic sample player (so one can play chords and melodies and basslines along the drum tracks).

My script: https://github.com/mrfloydst/d1melodi

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

Monday, July 22, 2024

VG-Line JunoMac 106


video uploads by VG-Line



"VG-Line JunoMac is a one-off keyless rehousing of the Roland Juno 106 synth, utilizing the chasis taken off of the 2004 Apple iMac and sporting some custom psychedelic artwork. Chorus speed and depth controls were added as a mod to the original Juno, and the detachable iMac stand allows for both vertical and horizontal installation."

Playlist:
JunoMac 106 - MPC One - Jam
Sweet Arpeggios with JunoMac 106
JunoMac 106 Sweet sounds
JunoMac 106 - Lower Tones
JunoMac 106 - rehoused by VG Line

Saturday, July 20, 2024

MAKING A DIY MODULAR DRUM MACHINE

video uploads by LAURI’S DIY CHANNEL TV

Playlist:

1 MAKING A DRUM MACHINE EP 0 / overview of the project + free sample pack!
Hey hey hey!

This is the introduction to a series of videos about my analog modular drum machine. I’m going to start posting videos about the individual modules so make sure to subscribe to the channel if you're interested in stuff like this! Sorry this first video has a lot of talking but there’s a bunch of sound demos at 7:53

The drum machine is powered with a regular 12V DC power supply, but all the circuits should be working from maybe 5V to at least 15V.
2. CD40106 MASTER CLOCK / making a drum machine EP 1
This is the first module in a series of modules for an analog modular drum machine! It's a simple clock oscillator and you can use the circuit as an audio rate oscillator as well.

Here's a link to the schematic and a zip file with the gerber files for the PCB: https://www.dropbox.com/scl/fo/4rxf1a...

Download some free samples from the drum machine here: https://www.dropbox.com/scl/fo/1qnq4t...

Thank you PCBWay for the circuit boards! If you want to order your own boards and you haven’t used their services before, you can get a 5$ welcome coupon with this referral link: https://pcbway.com/g/4TImAO Thank you goodbye! ❤️"
3. PATCHABLE DRUM SEQUENCER / making a drum machine EP 2
Heyyyy

This is my patchable CD4017 gate sequencer for the modular drum machine. The patching is kind of a weird workflow for a drum sequencer, but it IS fun and inspires you to program different sequences from your usual drum sequencers.

Here's a link to the schematic and a zip file with the gerber files for the PCB: https://www.dropbox.com/scl/fo/vrmmjw...
4. CMOS COWBELL / making a drum machine EP 3
Hello y'all!

This is my modular drum machines simple cowbell module! It's based on Elliot Williams' circuits from his Logic Noise articles.

Link to the schematic: https://www.dropbox.com/scl/fi/fd2hyt...

And here's a link to Williams' article about cowbells and cymbals: https://hackaday.com/2015/04/10/logic...
5. CMOS HI-HAT + WHITE NOISE / making a drum machine EP 4
This is the bigger brother of the XOR cowbell! It has 6 oscillators going through 4 XOR gates, making the sound more complex and inharmonic, perfect for metallic sounds like hihats and cymbals. The next video is going to be about the high pass filters i'm using a lot in the video! They help a lot with this circuit, making the sound way more usable as a hi-hat. I'll put the video out in a week or two!

Schematics: https://www.dropbox.com/scl/fo/eab78o...

The logic noise article this circuit is based on: https://hackaday.com/2015/04/10/logic...

About the white noise generator on Synthnerd's website: https://synthnerd.wordpress.com/2020/...
6. FIXED FILTERS (HPF & LPF) / making a drum machine EP 5
This is my CD4069 fixed filter module! It's 2 super simple circuits: a high pass (x4) and a low pass (x2) filter. It's a surprisingly useful module in the drum machine considering how simple the circuits are. The component values could be optimised better so the different filters would have similar volume levels, but I was happy with the sounds so who cares!

Schematic: https://www.dropbox.com/scl/fo/uit9zx...

I have been building instruments other than the drum machine as well and I think the next couple of videos will be other stuff, but I will then get back to the drum modules!

Piko Piko ProFree-4 Demos - YMO's "Rydeen" & B.B. Queens' "Odoru Pompokolin"

YMO "Rydeen" performed by original hard synthesizer Profree-4
video upload by PikoPiko Factory ピコピコファクトリー

"YMO "Rydeen" performed by original hard #synthesizer Profree-4"

B.B.クィーンズ 『#おどるポンポコリン』 B.B. Queens "Odoru Pompokolin" #synthesizer 2024/07/17


"オリジナルハード #シンセ Profree-4とPikoPikoBitsAlpha、PikoPikoBitsFM 、PikoPikoBass、PikoPikoDrumによる B.B.クィーンズ 『#おどるポンポコリン』

B.B. Queens 'Odoru Pompokolin' performed by original hard #synthesizer Profree-4, PikoPikoBitsAlpha, PikoPikoBitsFM, PikoPikoBass, PikoPikoDrum"

Friday, July 19, 2024

New Recodrum Spring Reverb


video upload by Arthur Joly

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