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[[File:MIDIBox SID (by Max Farnea) inside 2.jpg|thumb|right|250px|Insides of a [[MIDIBox SID]] by Max Farnea.]]<categorytree mode=all style="float:right; clear:right; margin-left:1ex; border:1px solid gray; padding:0.7ex; background-color:white;">Contents</categorytree>''
'''Synthesizer do it yourself''', '''Synth DIY''' or '''SDIY''' is about creativity, making, modifying, or repairing [[electronic musical instrument]]s and related equipment yourself. Many people with an interest in [[electronics]] and [[music]] are now discovering that a Synth-DIY project is feasible.<ref>[https://web.archive.org/web/20130113202557/http://www.musicfromouterspace.com/index.php?MAINTAB=SYNTHDIY Synth-DIY] at Music From Outer Space.</ref> More advanced synth DIYers design and build their own [[synthesizer]]s. What’s needed is a design, parts and tools, and especially the skills.<ref name="sos">[https://www.soundonsound.com/techniques/build-your-own-synth-websites ''Build Your Own Synth Websites''], Sound On Sound by Ken McBeth, Jan 2002</ref> Unless assembling relatively inexpensive circuits like the [[Atari Punk Console]], synth DIY can be an expensive pastime.
== Ability and know-how ==
The single most important factor in synth DIY is your skills. You'll need to be able to read and understand [[Schematics|circuit diagrams]], identify [[electronic component]]s, and [[fault-find]] non-working circuits.<ref name="ks">[https://web.archive.org/web/20170420052751/http://www.cgs.synth.net/
== Tools ==
The least [[tools]] you can start with are a good soldering iron, a desoldering pump or braid, fine wire-cutters, long nose pliers and a decent [[digital multimeter]].<ref name="sos" /> Also useful are an [[oscilloscope]] capable of DC coupled input, a solderless [[breadboard]], a bench power supply, a [[function generator]] and a [[frequency counter]].<ref name=mfos">[
===
==== EDA ====
{{Main|Electronic design automation}}
For more advanced DIY there is also the requirement for suitable electronic design automation (EDA) software, for the ''[[schematic capture]]'' (design of schematics), [[PCB layout]], [[Gerber files]] etc. such as [[gEDA]], [[Autodesk EAGLE]], [[KiCad PCB EDA Suite|KiCad]] or [[DIYLC]].
==== Circuit simulation ====
{{Main|Electronic circuit simulation}}
Simulation allows us to understand the operating principles of electronics.
This application is essential for those who wish to learn about electronic simulation.
[https://www.falstad.com/circuit/circuitjs.html Falstad] By Paul falstad
Kicad also has a SPICE simulation feature
[https://www.kicad.org/discover/spice/ Kicad and SPICE]
...
== Kits and PCBs ==
{{Main|Kit}}
{{See also|PCB and kit suppliers}}
[[PAiA Electronics Inc|PAiA]] have been producing analogue synth [[kit]]s since 1967. The [[PAIA Fatman]] is a complete synth to build from a proven design. It has two [[VCO]]s and a good [[VCF]] similar to that of the second-series [[ARP Odyssey]]. The schematics are easy to follow and anyone is allowed to build it providing they don't market it as their own.<ref name="sos" /> There is a selection of links to bare [[Printed circuit board|PCBs]] and kits at [https://web.archive.org/web/20130530023107/http://www.cgs.synth.net/modules/index.html Ken Stone's Modular Synthesizer site].
== Designs ==
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In the 1970s [[Electronic hobbyist]] magazines such as [[Practical Electronics]] (PE), [[Wireless World]], [[Electronics Today International]] (ETI) and [[Elektor]] were at the forefront, publishing designs for the synth builder. To build some of those designs, one needed a firm grasp of electronics and constructing even the smaller models was not easy.<ref name="sos" />
Things changed when ETI, in conjunction with
The Elektor [[
Bear in mind that magazine designs are frequently inaccurate or incomplete. The [[Practical Electronics Analogue Sequencer]], for instance, published in April 1977, will not function correctly without the modifications published in September 1977.<ref name="sos" />
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The Moog Modular manual is huge and contains all the schematic diagrams and some of the setup and calibration notes, but beware. Although the designs are all there, some of them use parts which may be hard or impossible to get hold of. It also has to be said that some modules, such as the [[oscillator]]s and [[envelope generator]]s, were better implemented in later designs such as the second-series [[Minimoog]], [[Prodigy]] and Rogue. Schematics for the latter two are extremely readable, as are the associated setup notes, and the circuits work.<ref name="sos" /> Another synth from the past which makes a good construction project is the [[Oberheim SEM]] (Synthesizer Expansion Module). This synth isn't too difficult to construct, and features a [[voltage-controlled state-variable filter]].<ref name="sos" />
Using circuits from a former commercial product, using a schematic from a service manual can also be problematic, as these too can contain errors.<ref>[https://www.
=== Books ===
{{Main|
''Build a better music synthesizer'' by [[Thomas Henry]] was a good introduction to [[modular synthesizer]] construction. ''Electronic Music Circuits'' by [[Barry Klein]] describes the circuitry involved in modular synth design, in more depth. It is a good starting point to learn the technology as well as electronics in general.<ref name="sos" /> However for both of these books some of the components may be no longer readily available.
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=== Web sites ===
{{Main|Online resources}}
There is an introduction to SDIY at [https://web.archive.org/web/20060111050127/http://www.musicfromouterspace.com/ Music From Outer Space], as well as parts and kits available for purchase. Use the [http://wayback.archive.org/ Wayback Machine] to view former websites, now no longer available.
[http://en.wikipedia.org/wiki/Main_Page Wikipedia] is a great resource. [http://www.allaboutcircuits.com/ All About Circuits] for well explained stuff. [https://web.archive.org/web/20121227110224/http://www.doctronics.co.uk/resources.html Doctronics] is a good reference for [[Integrated circuits|ICs]] when you're not sure what something does. At [http://users.ece.gatech.edu/~lanterma/sdiy/datasheets/ Aaron's Synth DIY] there is a list of useful parts. At [http://www.birthofasynth.com/Thomas_Henry/Pages/VCO-1.html Birth of a synth] there are some DIY modules, with explanations, for example the [[VCO-1]]. Although it is better to practice with very simple circuits before starting this kind of project, even though this is a fairly simple circuit.<ref name="sdiy-may-13">The Synth-diy Archive, [https://web.archive.org/web/20141010194214/http://dropmix.xs4all.nl/pipermail/synth-diy/2013-May/thread.html Hello, and some questions], May 2013</ref>
Aaron Lanterman's lectures [http://users.ece.gatech.edu/~lanterma/ece4803 ECE4803B: Theory and Design of Music Synthesizers], 2006 as well as [http://users.ece.gatech.edu/~lanterma/ems10 ECE4893A: Electronics for Music Synthesis], 2010 and [http://users.ece.gatech.edu/~lanterma/ems 2008] are available online.
* Synth design podcast : [https://m.youtube.com/watch?v=HpizuckShwQ Synth design podcast on youtube]
== See also ==
* [[
* [[Chronology of synth DIY]]
* [[Datasheet]]▼
* [[Electronics books]] for books about electronics.
* [[Simple electronics]]
* [[Synthesizer books]] for books about synthesizers, etc.▼
▲* [[Datasheet]]
* [[Magazines]]
* [[Schematics and manuals]]▼
* [[Online resources]]
* [[Patents]]
▲* [[Schematics and manuals]]
* [[Synth DIY books]]
* [[Simple synth DIY]]
▲* [[Synthesizer books]] for books about synthesizers, etc.
* [[Videos]]
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== External links ==
*
*
* [https://www.modwiggler.com/forum/viewtopic.php?t=59922 what percentage do you save going DIY?], Mod Wiggler Forum, May 2012
* [https://www.modwiggler.com/forum/viewtopic.php?t=265562 Talk me out of getting in way over my head for my first project], Mod Wiggler Forum, Aug 2022
[[Category:
[[Category:Contents]]
[[Category:Schematics]]
[[Category:PCB layouts]]
[[Category:DIY kits]]
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