1.0Seymour Duncanhttps://www.seymourduncan.comSarvesh Tiwarihttps://www.seymourduncan.com/blog/author/seymourduncanWhy does my single-coil-sized humbucker (rails or classic stack plus) pickup have a circuit board on the bottom? Does that mean it’s an active pickup? - Seymour Duncanrich600338<blockquote class="wp-embedded-content" data-secret="Yc23hT6K9o"><a href="https://www.seymourduncan.com/blog/faqs/why-does-my-single-coil-sized-humbucker-rails-or-classic-stack-plus-pickup-have-a-circuit-board-on-the-bottom-does-that-mean-its-an-active-pickup">Why does my single-coil-sized humbucker (rails or classic stack plus) pickup have a circuit board on the bottom? Does that mean it’s an active pickup?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.seymourduncan.com/blog/faqs/why-does-my-single-coil-sized-humbucker-rails-or-classic-stack-plus-pickup-have-a-circuit-board-on-the-bottom-does-that-mean-its-an-active-pickup/embed#?secret=Yc23hT6K9o" width="600" height="338" title="“Why does my single-coil-sized humbucker (rails or classic stack plus) pickup have a circuit board on the bottom? Does that mean it’s an active pickup?” — Seymour Duncan" data-secret="Yc23hT6K9o" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
/* <![CDATA[ */
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document);
/* ]]> */
</script>
No. It’s correct that some of our single-coil-sized humbuckers (JB Jr., Little ’59, Li’l Screamin’ Demon, Duckbuckers, Hot Rails, Cool Rails, Vintage Rails and the new Classic Stack Plus) have circuit boards on the undersides of the pickup. However, the pickups named above are passive, not active. The circuit board material is used for internal...