Super Sixteen Calibration Tutorial
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- Опубликовано: 1 ноя 2020
- A walkthrough of how to calibrate the 1V/oct pitch control voltage output on the Super Sixteen eurorack sequencer by Extralife Instruments. Requires a multimeter or an oscillator and tuner (or a well-calibrated pair of ears!).
USER MANUAL: extralifeinstruments.com/docs/...
BUILD GUIDE: extralifeinstruments.com/docs/...
BILL OF MATERIALS: octopart.com/bom-tool/Wq51xQ3R
INTERACTIVE BOM - CPU board: extralifeinstruments.com/docs/...
INTERACTIVE BOM - Control board: extralifeinstruments.com/docs/...
Build support thread on Muff Wiggler: muffwiggler.com/forum/viewtop... 
Хобби
I think you’re the only person in the world that has made a video about how to calibrate a sequencer with a multimeter. Thank you!
Ahh yeah extra back at it! Love seeing the progress of this project
That leaves no questions - thanks for putting so much detailed work into this! Great Kickstarter!
I see you are using a 12 bit dac. I have heard some people say that this isn't good enough for pitch applications. Does the quantized nature of the sequencer resolve this? Also I was wondering how you are doing the front panel? I'm designing a couple modules and any advice or recommendations would be great.
Yes the 12 bit DAC is adequate for well tuned pitch. The resolution at 0-8V is about 0.002v, or roughly 3 cents concert pitch, so slides are smooth and tuning easily calibrated.
The aluminum panels are fabricated by metalphoto of cincinnati from illustrator files, and the black ones are PCB panels. The kicad files for that are in the github repo, although tbh I haven't figured out a good way of getting component positions figured out besides manually calculating each offset from PCB via locations. github.com/matthewcieplak/super-sixteen
@@extralifedisco thanks for the GitHub link. I may redesign the black panel for myself. If I do I will let you know. I have a bunch of other panels to finish first though. Can you tell me which resistors control the brightness of the LEDs? I switched mine to a combination of red and blue but they are way too bright, even though they are diffused LEDs. I'd like to cut it in half at least.
@@etainafuzz You'll want R1 R2 R3 and R4 on the control board (below and to the right of the LEDs and switches). They're multiplexed so you need a smaller value than a typical R-LED circuit but maybe try something around 500 ohm. They share resistors in groups of 4, so having 2 different colors in circuit make it difficult to match the brightness.
Hi Extralife, where can buy the boards and panels? regards!
Hi Cesar, kits, parts and modules are available on my web shop here: store.extralifeinstruments.com/
@@extralifedisco thanks!