{"id":27,"date":"2018-04-20T22:06:50","date_gmt":"2018-04-20T22:06:50","guid":{"rendered":"http:\/\/blogs.harvard.edu\/bbrzycki\/?p=27"},"modified":"2018-05-11T11:20:26","modified_gmt":"2018-05-11T11:20:26","slug":"design","status":"publish","type":"post","link":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/design\/","title":{"rendered":"Design"},"content":{"rendered":"<p>The circuit schematic will be as shown in the image (or here <a href=\"http:\/\/basicaudio.net\/Fuzz%20factory%20schem.PNG\">http:\/\/basicaudio.net\/Fuzz%20factory%20schem.PNG<\/a>):<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21 aligncenter\" src=\"http:\/\/blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/zvex-fuzzfactory-rev1-1-300x191.gif\" alt=\"\" width=\"601\" height=\"382\" srcset=\"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/zvex-fuzzfactory-rev1-1-300x191.gif 300w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/zvex-fuzzfactory-rev1-1-768x488.gif 768w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/zvex-fuzzfactory-rev1-1-1024x651.gif 1024w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/zvex-fuzzfactory-rev1-1-676x430.gif 676w\" sizes=\"auto, (max-width: 601px) 100vw, 601px\" \/><\/p>\n<p>Another more graphical representation:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-20\" src=\"http:\/\/blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/knownworkingtotal-300x207.gif\" alt=\"\" width=\"600\" height=\"414\" srcset=\"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/knownworkingtotal-300x207.gif 300w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/knownworkingtotal-768x530.gif 768w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/knownworkingtotal-676x466.gif 676w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>I wired up the configuration + the smaller components on a prototyping board \/ perfboard which will lie within the pedal enclosure, along with a 9V battery.<\/p>\n<p>Even though the schematic is relatively simple for a guitar pedal, it was still a bit complicated for me, especially with all the feedback loops! To make sure I got the circuit correct, I printed out a version of the perfboard I used and drew in the circuit manually with pencil.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-62\" src=\"http:\/\/blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/IMG_20180508_234047-1024x768.jpg\" alt=\"\" width=\"676\" height=\"507\" srcset=\"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/IMG_20180508_234047-1024x768.jpg 1024w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/IMG_20180508_234047-300x225.jpg 300w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/IMG_20180508_234047-768x576.jpg 768w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/IMG_20180508_234047-676x507.jpg 676w\" sizes=\"auto, (max-width: 676px) 100vw, 676px\" \/>er<\/p>\n<p>For the enclosure, I would like to use a metal enclosure for durability. Since the device uses electrical sound as both input and output, the enclosure material will not affect the actual signal processing. I&#8217;m thinking about using a Hammond enclosure (<a href=\"https:\/\/www.mammothelectronics.com\/collections\/hammond-enclosures\">https:\/\/www.mammothelectronics.com\/collections\/hammond-enclosures<\/a>).<\/p>\n<p>The dimensions of the ZVex Fuzz Factory are\u00a04.70&#8243; x 2.38&#8243; x 1.82&#8243;, so I&#8217;m thinking of giving myself some leeway by getting an enclosure that is <a href=\"https:\/\/www.mammothelectronics.com\/collections\/hammond-enclosures\/products\/hammond-1550j-enclosure-10-83-x-6-89-x-2-46\">5.71&#8243; x 3.74&#8243; x 1.93&#8243;<\/a> (there wasn&#8217;t really a better enclosure size given the dimensions of the commercial pedal).<\/p>\n<p>I&#8217;ll also plan on decorating the enclosure to some degree. I found this link:\u00a0<a href=\"https:\/\/www.coda-effects.com\/2017\/10\/enclosure-art-how-to-make-good-looking.html\">https:\/\/www.coda-effects.com\/2017\/10\/enclosure-art-how-to-make-good-looking.html<\/a>, which goes through a few methods of decorating pedals. I will need to decide which method I think looks best while being feasible. (Obviously, some of the more impressive designs and decorations are pretty expensive or inaccessible for DIY.)<\/p>\n<p>As far as how the pieces will be mounted on the enclosure, on the top, there will be five potentiometers \/ knobs, a push button for power, and an LED to indicate ON\/OFF. There will be input and output 1\/4&#8243; jacks.<\/p>\n<p>Here is a simple CAD schematic I made; knobs on the top, push button on the bottom, LED in the middle:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32\" src=\"http:\/\/blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/Enclosure-top-schematic.png\" alt=\"\" width=\"600\" height=\"426\" srcset=\"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/Enclosure-top-schematic.png 703w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/Enclosure-top-schematic-300x213.png 300w, https:\/\/archive.blogs.harvard.edu\/bbrzycki\/files\/2018\/04\/Enclosure-top-schematic-676x480.png 676w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The circuit schematic will be as shown in the image (or here http:\/\/basicaudio.net\/Fuzz%20factory%20schem.PNG): Another more graphical representation: I wired up the configuration + the smaller components on a prototyping board \/ perfboard which will lie within the pedal enclosure, along with a 9V battery. Even though the schematic is relatively simple for a guitar pedal, [&hellip;]<\/p>\n","protected":false},"author":9578,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-27","post","type-post","status-publish","format-standard","hentry","category-uncategorized","post-preview"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/posts\/27","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/users\/9578"}],"replies":[{"embeddable":true,"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/comments?post=27"}],"version-history":[{"count":7,"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/posts\/27\/revisions"}],"predecessor-version":[{"id":75,"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/posts\/27\/revisions\/75"}],"wp:attachment":[{"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/media?parent=27"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/categories?post=27"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive.blogs.harvard.edu\/bbrzycki\/wp-json\/wp\/v2\/tags?post=27"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}