Tube Head Pre-amp Circuit [featured_image] Download Circuit Diagram Download is available until [expire_date] Version [version] Download 522 File Size 16.37 KB File Count 1 Create Date Last Updated June 20, 2015 Tube Head Pre-amp Circuit Tube Head Pre-amp Circuit Diagram and explanation in PDF Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)