{"id":205,"date":"2010-10-11T12:46:58","date_gmt":"2010-10-11T10:46:58","guid":{"rendered":"http:\/\/www.anyma.ch\/blogs\/research\/?p=205"},"modified":"2010-10-11T12:48:23","modified_gmt":"2010-10-11T10:48:23","slug":"sk09-scalebias","status":"publish","type":"post","link":"http:\/\/www.anyma.ch\/blogs\/research\/2010\/10\/11\/sk09-scalebias\/","title":{"rendered":"SK09-Scalebias"},"content":{"rendered":"<p><a href=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.26.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-207\" title=\"Screen shot 2010-10-11 at 12.39.26\" src=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.26-158x300.png\" alt=\"\" width=\"158\" height=\"300\" srcset=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.26-158x300.png 158w, http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.26.png 232w\" sizes=\"(max-width: 158px) 100vw, 158px\" \/><\/a><\/p>\n<p>Version 2 of the scale-bias module has come out as a really nice image-thrasher&#8230;<\/p>\n<p>I&#8217;ve made some conceptual errors, but I really like the results:<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-205 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-11.15.57.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-11.15.57-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.26.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.26-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.37.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.37-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.53.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.39.53-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.40.03.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.40.03-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.40.08.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.40.08-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.40.21.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"http:\/\/www.anyma.ch\/blogs\/research\/wp-content\/uploads\/2010\/10\/Screen-shot-2010-10-11-at-12.40.21-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<h3>So what&#8217;s wrong with this?<\/h3>\n<p>I decided to go for an inverting configuration for the amplifier to be able to have gain smaller than 1 (could be useful for modifying control voltages), but honestly, with R10 at 4k7 and the scale potentiometer at 100k, the range for small gains is really tiny. For video I find the high gain really interesting, though, so I&#8217;ll leave it that way for the moment.<\/p>\n<p>One problem with the inverting input is that now the bias affects the signal in the wrong way so turning the bias-pot is counter intuitive &#8211; I&#8217;ll just have to wire it the other way round. But the clipper clips the wrong way too, I&#8217;ll have to look into this. Not sure if there&#8217;s any use for a clipper in here, anyway.<\/p>\n<p>The cool thing about it is the possibility to get an inverted signal at the Pre-Clip output. It looks nicer than the image of the SK08-Inverter<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Version 2 of the scale-bias module has come out as a really nice image-thrasher&#8230; I&#8217;ve made some conceptual errors, but I really like the results: So what&#8217;s wrong with this? I decided to go for an inverting configuration for the amplifier to be able to have gain smaller than 1 (could be useful for modifying [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"_links":{"self":[{"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/posts\/205"}],"collection":[{"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/comments?post=205"}],"version-history":[{"count":3,"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/posts\/205\/revisions"}],"predecessor-version":[{"id":215,"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/posts\/205\/revisions\/215"}],"wp:attachment":[{"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/media?parent=205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/categories?post=205"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.anyma.ch\/blogs\/research\/wp-json\/wp\/v2\/tags?post=205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}