Although the Delta-Trem and Phaseomatic designs are drawing to close, there’s still some head scratching needed to get the tap tempo calibrated on both these pedals. To relax I decided to tweak-up the tone of a Fender ‘Champ 12’ amp we recently purchased for use as a rig for audio testing the subminiature tubes that are fitted in our effects pedals. Read on to discover how a just a handful of inexpensive components can radically improve the tone of this little tube amp!