* S-100 Series Synthesizer

Eurorack format analog/digital modular synthesizer system.

Model Naming convention S-1xy-v

S-100 -> series

x -> functional group

y -> model

v -> module version

Functional groups
| Number | Function   |
|--------+------------|
| S-10*  | Reserved   |
| S-11*  | Utilities  |
| S-12*  | Generators |
| S-13*  | Modulators |
| S-14*  | ???        |
| S-15*  | Clocking   |
| S-16*  | Sequencers |
| S-17*  | Controls   |
| S-18*  | Effects    |
| S-19*  | I/O        |

** Module Index
|---------+----------------------------+---------+------------+-----------+-------------|
| Model # | Name                       | Version | Schematics | Prototype | Fabrication |
|---------+----------------------------+---------+------------+-----------+-------------|
| S-110   | Quad CV Mixer              |   0.2.0 | x          | x         |             |
| S-111   | Dual Attenuverter + Offset |   0.1.0 | x          |           |             |
| S-121   | LFO                        |         |            |           |             |
| S-127   | White+Pink+Blue Noise      |         |            |           |             |
| S-128   | S&H + Noise Gen            |         |            |           |             |
| S-150   | Master Clock               |         |            |           |             |
| S-153   | Binary Clock Divider       |         |            |           |             |
| S-154   | Sequential Switch          |         |            |           |             |
| S-185   | Spring Reverb              |         |            |           |             |
| S-186   | PT2399 Echo/Delay          |   0.2.0 | x          | x         |             |
| S-190   | Panning Audio Mixer        |   0.1.0 | x          |           |             |

* Misc

** Eurorack Panel Sizes

- 3U height = 128.55 +0/-0.15 mm
- Widths have a tolerance of +0/-0.2 mm
- Mounting holes have a vertical distance between them of 122.50 ±0.2 mm
- Widths are calculated as follows:

#+name: Eurorack Panel Width 
#+begin_src python :results value 
sizes = [x for x in range(2,37) if x % 2 == 0]

table = []
table.append(("HP", "Width (mm)"))
for hp in sizes:
  width = (hp * 5.08) - 0.3
  table.append((hp, round(width, 2)))

return table
#+end_src

#+RESULTS: Eurorack Panel Width
| HP | Width (mm) |
|  2 |       9.86 |
|  4 |      20.02 |
|  6 |      30.18 |
|  8 |      40.34 |
| 10 |       50.5 |
| 12 |      60.66 |
| 14 |      70.82 |
| 16 |      80.98 |
| 18 |      91.14 |
| 20 |      101.3 |
| 22 |     111.46 |
| 24 |     121.62 |
| 26 |     131.78 |
| 28 |     141.94 |
| 30 |      152.1 |
| 32 |     162.26 |
| 34 |     172.42 |
| 36 |     182.58 |