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Modular Synth Projects | Nonlinearcircuits

Andrew of NONLINEARCIRCUITS has a Ph.d. in memristor based chaotic circuits and produces some of the best chaos-oriented circuits around.

Favorites:

Triple Sloths
3 Sloth chaos circuits running at a different rate (15-30 seconds, 60-90 seconds, and 30-40 minutes)
Divide & Conquer
Clock divider with some standard and unusual divisions including: /1.5, /3; /2.5, /5; /3.5, /7
Let's Splosh
8 different rectifiers processing 4 input signals all over 16 outputs
Ian Fritz Hypster
Electronic fourth-order hyperchaos generator with very wide ranging orbits: from approx. 3 kHz to 5 minutes

Divide & Conquer

Build Notes

Very straight-forward build. After placing all the parts with solder paste, I cooked the PCB in a frying pan and touched up with the solder rework station.

Lower-profile Tayda A-4662 and A-1605 pin headers and sockets were used to make the module slightly more skiff-friendly while still allowing PCB separation.

Red, blue, and orange LEDs were overly bright using 4.7k resistors (pictured in the build document); though diffused green seemed OK. 10k resistors in the RL pads tamed the brightness nicely (but would be slightly on the dim side for green LEDs).

DP Filter

Build Notes

This build is fairly different than usual NLC modules. It has a large number of thru-hole components plus 1206 caps and resistors.

0806 SMD parts were able to fit on the 1206 pads just fine for parts not in stock.

Order is important for optimal soldering since the board is fairly densely populated:

  1. SMD
  2. DIP sockets
  3. Potentiometers
  4. Resistors and diodes
  5. Everything else

3.5mm jacks are not PCB mounted and must be connected using wires. Female-female jumper wires (stripped at one end) and single-row pin headers works well.

Let's Splosh

TODO Tracky Dacks (VC EG)

TODO Ian Fritz Hypster

TODO Encephalo Adjuster

TODO Delay No More

TODO Timbre & Timbre

TODO CLUMP

TODO Ming Rod