The design goal when making the 4 Knob was to generate lots of output from a very minimal amount of input and control. The initial prototype only consisted of a clock input and the 4 knobs as input/control but was able to output two voiced 32 step sequences. More controls were added to either filter this output or help it work in sequence with other parts of a modular system.

The way the sequencer works is that it reads the positions of the four knobs and converts these positions into numbers. It then uses these numbers to determine the number of steps in a sequence (2 to 32 is step range) and what each of the four outputs of the sequence should be doing on each of those steps. Each step has a specific set of instructions, like Add knob 1 to knob 3 and use that number for the output of Voltage 1. Then check if the third bit of knob 4 is on, if so turn on Gate 2. This means that the sequences are not random, though the changes are difficult to predict

Demos, build documentation, drill guide, are available here.

Unfinished panels are drilled by hand in my garage, they are bare aluminum that may be scratched.  They are intended to be painted, etched or otherwise finished later.

Pre-Assembled Modules are built after the order comes in.  Build time can be a few days or a few weeks depending on what parts I have on hand.  When ordering, please leave a comment at checkout if you have preferences on what color(s) the panel is painted.