The SMT adaptation was a hobby project. The MFOS designs are the property of SynthCube.
If you want to buy PCB for the MFOS synths, please visit musicfromouterspace.com
This is my next MFOS Eurorack-conversion project, the Analog 10 Step Sequencer!
You can find all the original documentation on Ray’s website.
As with my previous adaptations of Ray’s Synth modules to the Eurorack format, I try to stick as much as I can to the original circuit, keep component references, etc. So you can cross reference the documentations.
Documentation and downloads
- Schematics (mfos-10-step-seq-1.0-20191024.pdf)
- Interactive BOM (mfos-10-step-seq-1.0-ibom-2019-09-25)
Hi David, I’m about to build a 10-step sequencer based on the MFOS schematics. I’d like to get your opinion on the capacitor that controls the clock speed.
In your schematics, this is capacitor C23 (10 nF). According to the simulation, the BPM seems very high, so I was thinking of using a 47n capacitor to achieve 120 BPM at the midpoint of the pot’s travel and 120 BPM (at a sixteenth-note rate) at the end of the travel.
What do you think? What are the technical considerations for choosing the value of C23?
Thanks for your work it’s a real inspiration.