{"id":6718,"date":"2019-08-16T20:59:43","date_gmt":"2019-08-16T17:59:43","guid":{"rendered":"https:\/\/eero.storijapan.net\/docfolio\/?p=6718"},"modified":"2019-08-20T23:25:09","modified_gmt":"2019-08-20T20:25:09","slug":"20190816-2","status":"publish","type":"post","link":"https:\/\/eero.storijapan.net\/docfolio\/20190816-2\/","title":{"rendered":"20190816"},"content":{"rendered":"<p>A thorough and nice <a href=\"https:\/\/youtu.be\/oUhfkaVUPY8\">no input mixing tutorial<\/a> by Sarah Belle Reid (2019).<\/p>\n<p>Build a perf-board unit of the a <a href=\"https:\/\/musicthing.co.uk\/pages\/simpleeq.html\">Simple EQ \/ Baxandall EQ<\/a> module (the Tilt channel is still in the making). The build was an ordeal. I did how ever learn that the reverse polarity protection of the circuit works well (it even saved an IC I popped in the wrong way) and that my noisy DC 5-24v to Dual Power 12v -12v 5v -5v 3.3v supply is robust. I attempted to plan the build using various board design tools (<a href=\"https:\/\/fritzing.org\/home\/\">Fritzing<\/a> worked best for me) but ended up just soldering components down following the schematic.<\/p>\n<p>I added two switches to my build, which can be used to bypass the capacitors controlling the bass response (27nf) and\/or the treble (1nf). Changing the 27pf didn&#8217;t have much effect. I added female pin headers which can be used to insert different capacitors in their place. My first water capacitor (using faux s.pellegrino) shows a value of ~35pf and it has <a href=\"https:\/\/www.youtube.com\/watch?v=cbN9hpxdYKg\">an effect on the soun<\/a>d. Next I&#8217;ll build more water capacitors, which hopefully will have higher values for more distinct effects. I&#8217;ll also have to design a front panel, which can used to mount the bulky capacitors (The one I have has ~20ml of water in it).<\/p>\n<p>During my tests I&#8217;ve discovered that the electrical resistance of sparkling mineral water drops slowly (as the water loses its bubbles). I believe that this property could be used as vca of sorts. I plant to make a simple signal divider, which uses sparkling mineral water as a conductor. This signal multiplier would be useful for one-shot slowly amplifying ramps (for example adding volume). Water and electronics is a beautiful combination.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A thorough and nice no input mixing tutorial by Sarah Belle Reid (2019). Build a perf-board unit of the a Simple EQ \/ Baxandall EQ module (the Tilt channel is still in the making). The build was an ordeal. I did how ever learn that the reverse polarity protection of the circuit works well (it &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/eero.storijapan.net\/docfolio\/20190816-2\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;20190816&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[880,981,1559,1543,1652],"class_list":["post-6718","post","type-post","status-publish","format-standard","hentry","category-log","tag-electronics","tag-eurorack","tag-mineral-water","tag-music-thing-modular","tag-sarah-belle-reid"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/posts\/6718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/comments?post=6718"}],"version-history":[{"count":0,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/posts\/6718\/revisions"}],"wp:attachment":[{"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/media?parent=6718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/categories?post=6718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/tags?post=6718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}