====== Modular Synthesizers ======

  * [[https://en.wikipedia.org/wiki/Paraphony|Paraphony]] - Multiple notes share part of signal path

Suitable components are gathered at the [[modular_synthesizers:components|Components]] subpage.

Module ideas on [[modular_synthesizers:module_ideas|Module ideas]] subpage.
====== Specifications ======
===== Electrical =====
==== Backplane pinout ====

^ 16-pin ^ 10-pin ^ Function ^
| 1,2    | 1,2    | -12 V    |
| 3,4    | 3,4    | GND      |
| 5,6    | 5,6    | GND      |
| 7,8    | 7,8    | GND      |
| 9,10   | 9,10   | +12 V    |
| 11,12  |        | +5 V     |
| 13,14  |        | CV       |
| 15,16  |        | GATE     |

==== Input characteristics ====
^ Property ^ Common value ^
| Impedace | > 10k |
| Voltage range | -10 V to +10 V |


==== Output characteristics ====
^ Property ^ Common value ^ Doepfer A-100 ^
| Impedace | > 1k | ? |
| Audio voltage |  | -5 V to +5 V |
| Control voltage | -10 V to +10 V | -2.5 V to +2.5 V |
| Trigger voltage |  | 0 or +5 V |


=== Measured on my system ===
Tip seems to be signal, ring seems to be 0 V.

^ Property ^ Value ^ Comment ^
| Impedace | ? | Not measured |
| Audio voltage | -5 V to +5 V | Measured on Doepfer A-111-6|
| Control voltage | 0 V to +10 V | Measured on arturia output |
| Trigger voltage | 0 or +5 V | Measured on arturia output |
==== Different systems ====
^ Property ^ Moog standard ^ Buchla ^
| Volts per octave | 1 V | 1.2 V |
===== Dimensions =====

Many dimensions are derived from [[http://www.doepfer.de/a100_man/a100m_e.htm|Doepfers DIY guides]].

^ Dimension ^ Nominal (mm) ^ Actual (mm) ^ Comment ^
|  3 U |  133.40 |  128.50 | Height |
|  1 HP |  5.08 |  5.00 |  |
|  2 HP |  10.16 |  9.80 |  |
|  4 HP |  20.32 |  20.00 |  |
|  6 HP |  30.48 |  30.00 |  |
|  8 HP |  40.64 |  40.30 |  |
|  10 HP |  50.80 |  50.50 |  |
|  12 HP |  60.96 |  60.60 |  |
|  14 HP |  71.12 |  70.80 |  |
|  20 HP |  101.60 |  101.30 |  |

Other dimensions (mostly from [[https://sdiy.info/wiki/Eurorack_panel_components]])
^ Nominal (mm) ^ Measure ^
|  2 | Thickness of panel, measured |
|  122.5 | Mounting hole vertical spacing |
|  N x 5.08 | Mounting hole horizontal spacing |
|  3 | Mounting hole vertical distance from panel top/bottom edge |
|  7.45 | Mounting hole horizontal distance from panel left edge |
|  3.2 | Mounting hole size |
|  M3 | Mounting hole screw |
|  112.2 | Max clearance between rails for smallest (Schroff) system |

====== Recommended / Wishlist ======


===== Modules =====

  * <del>[[https://www.thomann.de/se/behringer_305_eq_mixer_output.htm|Behringer 305 EQ/Mixer/Output]]</del>
  * [[https://www.modulargrid.net/e/wmd-metron|WMD Metron]]
  * [[https://escapefromnoise.com/en/manufacturer/expert-sleepers/expert-sleepers-super-disting-ex/|Expert Sleepers - Disting EX]]

===== Accessories =====

  * [[https://www.thomann.de/se/hosa_cmm_830.htm|Hosa 30cm patch cable]]
  * [[https://www.thomann.de/se/hosa_cmm_890.htm|Hosa 90cm patch cable]]
  * [[https://www.thomann.de/se/behringer_eurorack_rack.htm|Behringer rack with PSU]]

===== Hardware =====

  * [[https://www.digikey.se/product-detail/sv/adafruit-industries-llc/4255/1528-4255-ND/10244656|4255]] -- BRASS HEAT-SET INSERTS - M3 X 4M
  * [[https://schneidersladen.de/en/sb-rail-1000mm-without-lip|sb-rail-1000mm-without-lip]] -- Rail
  * [[https://schneidersladen.de/en/frap-tools-sliding-nuts-100-pcs|frap-tools-sliding-nuts-100-pcs]] -- Nuts
  * [[https://www.schaeffer-ag.de/en/front-panel-designer#download|Schaeffer AG]] -- Custom front panels and enclosures
  * [[https://amalgamod.com/|Amalgamod]]
====== Resources ======

  * [[https://www.thomann.de/se/modulaera_systeme.html|thomann.de]] -- German music shop
  * [[https://www.modulargrid.net/e/modules/browser|modulargrid.net]] -- Database of modules
  * [[https://escapefromnoise.com/modular/|escapefromnoise.com]] -- Swedish modular shop
  * [[https://shop.befaco.org/|befaco.org]] -- DIY kits and parts
  * [[https://vend.se/eurorack-alla]] -- Swedish second hand market
  * [[https://www.thonk.co.uk|www.thonk.co.uk]] -- DIY synths and kits shop
  * [[https://vcvrack.com/|vcvrack.com]] -- Modular emulator
  * [[https://schneidersladen.de/|schneidersladen.de]] -- German synth shop
  * [[http://www.doepfer.de/DIY/a100_diy.htm|Doepfer DIY]] -- Basics about the electronic levels etc
  * [[https://www.youtube.com/channel/UCzfW6SlNEyxmAPtdr3n-_Og|Moritz Klein]] -- Youtube channel with good how-to's
  * [[https://schmitzbits.de/|Schmitzbits]] -- Synth stuff website
  * [[http://ijfritz.byethost4.com/|The Electronic Sound-House]] -- Ian Fritz's electronic music site
  * [[https://www.youtube.com/@Lantertronics|Aaron Lanterman's Youtube channel]] -- Very useful lectures
  * [[https://www.youtube.com/@w2aew/videos|w2aew's Youtube channel]] -- Good electronics videos
  * [[https://sdiy.info/wiki/Eurorack_panel_components|sDIY.info]] -- Lots of gathered info about parts and proposed part numbers
  * [[https://www.e-switch.com/product-catalog/cap-options|E-Switch]] -- A bunch of button caps