5U Dotcom Format Home Built Analog Sequencer

Third demo of home built Analog Sequencer - Part 1

Published on Jun 15, 2014 TjimmyChonga

"This is a demo of a home built 4x8 32 note analog sequencer I have been building. It's taken a while, and it's finally mostly feature complete."

Third demo of home built Analog Sequencer - Part 2

Published on Jun 15, 2014

"This is part 2 of a demo of a home built 4x8 32 note analog sequencer I have been building. It's taken a while, and it's finally mostly feature complete.
Here is a little demo of the primary functionality."

Third demo of home built Analog Sequencer - Part 3

Published on Jul 2, 2014

"This is part 3 of a demo of a home built 4x8 32 note analog sequencer I have been building. It's taken a while, and it's finally mostly feature complete.
This one shows the configuration and ratcheting functions."

Created a new TjimmyChonga channel label for these. The first post went up in December of 2013.

Soldering all those 0805 Caps for Deckard's Dream

Published on Oct 11, 2017 TjimmyChonga

http://www.deckardsdream.com

"The Deckard's Dream DIY synth requires soldering 650+ very small surface mount capacitors.
Here's how to do that without panicking."

Funny bit right after 4:45. Wait for it. Note he is working on a Chrutil Sequencer III. You can see the II in action here.

Update:

CLICK FOR MORE »

First test (build in progress) of Analog Sequencer

Published on Dec 10, 2013 TjimmyChonga·1 video

"This is the very first test of an analog sequencer I am building to control a modular synthesizer.
The internals of the sequencer is an Arduino, a DAC and custom circuitry, including 4 4051 MUX to read 32 pots, 6 MCP23017 I/O expanders to read the switches and a MAXIM 7219 for LEDs.
It controls a Synthesizers.com modular synthesizer.
The front panel is just a wood mockup for now, but will be installed in an 8 MU blank dotcom panel."

Moog Muse and the unfortunate case of some mildly dodgy waveforms?

video upload by Tim Shoebridge

"In this video I compare the basic waveforms on my Moog Muse with another Moog synth (a Matriarch) to illustrate some potential issues I am having with my particular unit. Do you have any of the issues I describe? Have you needed to contact Moog support for assistance with your Muse and, if so, what was the outcome? I'd love to hear your experiences."

Update: and a response:

The waveforms on my Moog Muse looks fine to me

video upload by TjimmyChonga

"I came across this video by Tim Shoebridge where we showed that on his Moog Muse, the waveforms are all out of whack. I haven't noticed anything of the kind, so I decided to take a look at mine."

Chrutil Sequencer II - Home built analog sequencer

Published on Dec 5, 2015 TjimmyChonga

"Demo of the second version of the Chrutil Sequencer.
This is a home built 4x8 32 step analog style sequencer based on the Teensy 3.1 micro controller and an AD5668 16 bit DAC."

Previous videos here and here.

Second demo of home built Analog Sequencer

Published on Apr 26, 2014 TjimmyChonga·2 videos

"Here's a progress update of the Arduino based Analog-style sequencer I'm building. This is just at quick demo - I'll be fully documenting the process of building it with parts, etc. once I get a little bit further."

Follow-up to part 1 here.

5U/MU Chrutil 252e Deep Dive

Published on Nov 16, 2019 TjimmyChonga

"A deep dive of the features and functionality of my hand made 'reimagination' of the Buchla 252e sequencer in MU format"

Deckard's Dream Voice Card 0805 SMD Capacitors

Published on Oct 23, 2017 TjimmyChonga

"This rather long video is an unedited session of soldering the SMD caps on the Deckard's Dream Voice Card.
Long and unedited are key words here. It's basically a real-time video of me soldering all the SMD capacitors on one Deckard's Dream Voice Card. I don't expect anyone to see this. That's ok."

You can find all parts in this series here.

Happy New Year From MATRIXSYNTH! - A Look Back at 2014

Happy New Year everyone!

I want to start by thanking everyone that comes to MATRIXSYNTH and helps make it what it is - the readers, the supporters, and of course all the sponsors on the right.

THANK YOU and have a GREAT 2015!!!

This site is a labor of love and a ton of work. This site is ultimately meant to be an testament to everything synth in the making. We have over nine years of daily synth history captured here, 119,983 published posts. I can't wait to see what the future brings us in 2015!

That said, here are a few interesting bits from 2014 in the longest post of the year. ;)

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Chrutil 252e in MU - Early Preview

Published on Sep 20, 2019 TjimmyChonga

This one is in via John L Rice.

"In the spring of 2019 I started obsessing about the Buchla 252e Polyphonic Rhythm Generator, and after some thought I decided to try to build my own in MU format..
The video demos the progress so far."

See the Chrutil below for more.

Soldering 0805 Caps for Deckard's Dream part 2 - Iron or Hot Air

Published on Oct 15, 2017 TjimmyChonga

http://www.deckardsdream.com - Deckard's Dream is now available in both kit and pre-built form as announced here.

"Aside from 4000 through-hole components, the Deckard's Dream DIY synth requires soldering almost 700 very small surface mount capacitors.
Should you do that with a soldering iron or a smd hot air rework station? You decide!"

Part 1 here.

Deckard's Helper - DIY Ribbon and PseudoPoly Aftertouch for the Deckard's Dream

Published on Feb 25, 2020 TjimmyChonga

"Quick Demo of a nifty little DIY project that provides Deckard's Dream (or any other synth) with pseudo polyphonic aftertouch and a DIY cs-80 style ribbon controller.
This is an update to my previous video about a DIY ribbon for the Deckard's Dream."

crOwBX 2.4 Voice Card. First Test

Published on May 27, 2020 TjimmyChonga

"Here's a first test of a crOwBX 2.4 voice card using a custom digital controller board.
The crOwBX is a clone of the legendary Oberheim OB-X, and one day I hope to finish a digitally controlled OB-X clone, using the crOwBX voice cards, but adding additional features, like multi timbral, modulations, etc.
This is not something I anticipate being done soon, given that I got these voice cards two years ago, but one day... In the meantime I keep changing the scope of the project so I'm not in a hurry."