Happy to have written, illustrated and photographed the cover story of this month’s (August 2013) issue of Premier Guitar magazine. The article gives a part-by-part description of tube amp technology using my favorite amp, a 1960’s Vox AC4. It traces the guitar signal through every component, from pickup to speaker. And it gets into a not-overly-technical description of electrons, current flow and the basic operation of vacuum tubes.
In addition to print, an online version is here:
Also, if following along here is the original Vox AC4 schematic mentioned in the article.