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A good clean power supply unit (PSU) is the most important part of a modular system. A proper [[Power supply (linear)|linear power supply]] and good distribution makes a big difference to the stability and sound quality of the system.<ref>[https://www.
=== Safety ===
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|[[Eowave]]||[http://www.eowave.com/modules/diy-kits/diy-power-supply/ DIY PSU]||switching||+12V @ 1.5V, -12V @ 0.7A,<ref>[http://www.mouser.com/ds/2/405/lm2576-405253.pdf LM2576/LM2576HV Series SIMPLE SWITCHER® 3A Step-Down Voltage Regulator], p.20</ref> 5V @ 0.5A
||external 15V 4A DC switched brick||2xLM2576T, 7805||Separate bus with 15 headers||proprietary||PCB and components kit||[https://www.
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|[[Erica Synths]]||[https://web.archive.org/web/20160418113647/http://ericasynths.lv/en/shop/diy/diy-kits-1/eurorack-bipolar-12v-psu-kit/ 12V bipolar 1.5A PSU] ||linear||+/-12V @ 1.5A||toroidal attached to PCB||LM317, LM337||Separate bus with 14 headers||proprietary||PCB, hardware and components kit||[https://www.
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|[[Frequency Central]]||[http://www.frequencycentral.co.uk/?page_id=894 FC Power DIY]||linear||+/-12V @ 0.5A, 5V @ 0.1A||12V AC wall wart||7812, 7912, 78L05||1 header or solder leads to PCB||||PCB only. Inexpensive solution for small Euro system.||[https://web.archive.org/web/20160402182233/http://www.frequencycentral.co.uk/wp-content/uploads/2013/02/FC-Power-Build-Doc.pdf FC Power Build Doc]
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|[[Frequency Central]]||[http://www.frequencycentral.co.uk/?page_id=1766 Routemaster DIY]||linear||+/-12V @ 0.5A, 5V @ 0.1A||12V AC wall wart or 12V centre-tapped transformer||LM317, LM337, 78L05||12 Euro, MOTM, or Dotcom headers integrated on PSU PCB||||PCB only. Inexpensive solution for small Euro system.||[https://web.archive.org/web/20161215232344/http://www.frequencycentral.co.uk/wp-content/uploads/2016/08/Routemaster-Build-Document.pdf FC Routemaster Build Doc]
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|[[L-1]]||[http://l-1.su/Power.html 12V bipolar linear PSU+busboards]||linear||+/-12V @ 1.5A||toroidal attached to PCB||2xLD1084, 7805||Two 12 header bus PCBs with kit. +5V regulator mounted on bus off 12V rail||||Full kit for PSU + two busboards||[https://www.
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|[[Electronic Things… And Stuff]]||[https://www.tindie.com/products/dhaillant/mini-dual-power-supply/ Mini Dual Power Supply]||linear||+/-12V @ 0.5A||12V AC wall wart||7812, 7912||Separate kits for 8 or 14 header bus||||||
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|ModularSynth.ru||[http://www.modularsynth.ru/en/2014/07/18/regulated_psu_update/ Regulated Bipolar PSU]||linear||+/-12V @ 1.5A, 5V @ 1.5A||separate transformer||2xLM317, LM337||||[https://web.archive.org/web/20160412191857/http://creativecommons.org/licenses/by-nc-sa/3.0/deed.en CC-BY-NC-SA]||||
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|[[Moraydular]]||[https://github.com/vaeinoe/moraydular/tree/master/virta Virta PSU]||linear||+12V @ 1.5A, -12V @ 1A||switching wall wart||LM2991T, LM1086||12 header board with optional 7805, see [https://www.
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|[[stroh]]||[http://synthcube.com/cart/index.php?route=product/product&product_id=590 modular power supply]||linear||+/-12V <!--@ 1.5A -->, 5V <!--@ 1.5A -->||toroidal mounted on PCB||LM317T,LM337T,LM1086||Detachable 2"x6" 12 header board with 5x10-pin Euro, 4x16-pin Euro, 8x6-pin Dotcom/MU and 8xMOTM/Frac headers.
||||PCB only or full kit.||[https://www.
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== External links ==<!-- in chronological order -->
* [http://www.electro-music.com/forum/viewtopic.php?t=51694&postorder=asc Linear Power Supply For Modular Synth Application.], Electro-Music forum, Jan. 2012
* [https://www.
* [https://www.
* [https://www.
* [https://www.
* [https://docs.google.com/spreadsheets/d/17qu-PkyJnjZf9YzhNYy7X7-d-lmZqhahyUW0YM1b2N0/edit#gid=0 The big eurorack PSU list], for a wider comparison both DIY and ready made
=== Other useful power projects ===
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