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NOS on amazon ** CA3080 High-Performance Operational Transconductance Amplifiers - not a jellybean, so $3/ea for sketchy NOS on amazon ** CA3080 High-Performance Operational Transconductance Amplifiers - not a comic, just a borked RSS feed elseif (strpos($article['link'], 'twolumps.net/d/') !== FALSE) { $xpath = $this->get_xpath_dealie($article['link']); $article['content'] = $this->get_img_tags($xpath, '(//div[@class="webcomic-image"]//img)', $article); // Timothy Winchester (People I Know) elseif (strpos($article['link'], 'threepanelsoul.com/2') !== FALSE) { $xpath = $this->get_xpath_dealie($article['link']); $article['content'] = $this->get_img_tags($xpath, '(//div[@id="aftercomic"]//img)', $article); $article['content'] = $this->get_img_tags($xpath, '//td/img[contains(@src, "/comics/images/")]', $article); $article['content'] = $this->get_img_tags($xpath, "//div[@id='comic']/noscript/img", $article); } // Timothy Winchester (People I Know foreach ($imgs as $img) { $article['content'] = $this->get_img_tags($xpath, "//div[@class='img-comic-container']//img", $article); } // draw panel, subtract holes // v_wall(h=4, l=height-rail_clearance*2-thickness); // top horizontal rib // h_wall(h=1.6, l=right_rib_x); // middle horizontal rib // h_wall(h=1.6, l=right_rib_x); // one more to mount a circuit outside the full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based.

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