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=== 3.5mm jack sockets ===
These are '''not''' 1/8 inch but are 3.5mm.<ref name="techqs">[http://www.muffwiggler.com/forum/viewtopic.php?t=33821&start=all&postdays=0&postorder=asc Some Eurorack technical questions], Muff Wiggler forum, April 2011</ref> Popular brands of vertical mount 3.5mm mono jacks for Eurorack are Cliff (used by [[Doepfer]]), Erthenvar aka Flight of Harmony, Kobiconn (used by [[Cwejman]], [[Make Noise]], [[Malekko]] and [[Metasonix]]) and Switchcraft. These are available switched (for [[normalisation]]) and unswitched.<ref name="planb">[http://www.muffwiggler.com/forum/viewtopic.php?t=1750&start=all&postorder=asc Plan B/Cliff Jacks], Muff Wiggler forum, September 2008</ref><ref>[http://www.muffwiggler.com/forum/viewtopic.php?t=96727&start=all&postdays=0&postorder=asc Have I bought the wrong jacks for eurorack?], Muff Wiggler forum, November 2013</ref> Erthenvar 3.5mm vertical mount jacks with a thread diameter about 5.9mm (0.232"), will fit well with panel drill holes of 6.0 to 6.5mm diameter.<ref name="erthenvar"/>, Erthenvar</ref><ref name="msx">[http://www.modularsquare.com/Metasonix-R54-s868.htm Metasonix R54]</ref><ref>[http://www.muffwiggler.com/forum/viewtopic.php?t=73406&start=all&postdays=0&postorder=asc Erthenvar 3.5mm Vertical Mount Jacks], Muff Wiggler forum, December 2012</ref>
Suppliers:
==== Cliff horizontal PCB mount ====
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== PCB dimensions and mounting ==
These days Eurorack modules tend to mount the PCB parralel to the front panel, held in place by the pots, jacks and switches.<ref name="six">[http://www.muffwiggler.com/forum/viewtopic.php?t=123605 Six jacks in euro, what is the preferred configuration?], Muff Wiggler forum</ref> Modules with wired front panel components cost more to manufacture than PCB mounted, however these electro-mechanical components have limited lifetimes and while PCB mounted parts can be repaired it's not as easily as wired components. Also PCB mounted components mean the board is designed around specific parts. If any of these parts goes out of production the modules have to be redesigned, with the additional cost of updating the PCBs.<ref
The vertical distance between the mounting holes on Eurorack rails is 122.5mm apart (4.823"). Based on the manufacturer's drawings for the most common rails used in Euro cases, the clear space between pairs of rails is:
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Don't use tools you value highly, the headers are made of brittle glass filled epoxy which will damage the edge of any blades used to cut it. To get the single row male headers to length, grip the last pin of the length you want firmly in pliers and snap the rest off. The female headers don't snap easily so first pull the pins out of the body at the point where you want it to snap, then file the ends smooth. Alternately combine smaller lengths to make up the length required. To get them to butt against each other at 0.1" if there is extra plastic on the ends file it down.<ref name="hw" />
Suitable parts can be purchased for example:<ref
* [http://www.mouser.com/ProductDetail/3M-Electronic-Solutions-Division/929974-01-36-RK/?qs=Z7nQflo5OWeXTtG8NqxhFQ%3D%3D 517-929974-01-36-RK], Mouser female 2.54mm pin header, 36 way, tin plated copper
* [http://www.mouser.com/ProductDetail/3M-Electronic-Solutions-Division/929834-01-36/?qs=QV10cN0MjFtGMxJSq6rXkQ%3D%3D 517-834-01-36], Mouser male 2.54mm pin header, 36 way, tin plated copper
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==== Doepfer ====
Doepfer modules, (the de facto standard)<ref name="hinton" /> use two row of 8 [[pin header|male pin headers]] for connecting power and [[normalising]] [[CV/Gate]]. The pins are 0.1" (2.54mm) apart and at a 0.1" pitch. The interconnection is done via ribbon cable with 1.27mm (0.05") pitch, and using female sockets, 16-pin to the supply bus and either 16 or 10-pin to the module. The colored wire on the ribbon cable indicates -12V.<ref>Doepfer [http://www.doepfer.de/a100_man/a100t_e.htm Technical Details A-100]</ref><ref name="ta">[http://analogue-heaven.1065350.n5.nabble.com/some-help-building-a-rack-for-doepfer-tp25377p25380.html Re: some help building a rack for doepfer] by [[Tony Allgood]], Analogue Heaven email list, 29 June 2006</ref><ref name="def"
==== Cwejman ====
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