PG's Brett Petrusek is On Location at NAMM '09 where he visits the Seymour Duncan booth. In this segment, we get our first chance to see and hear the latest pedal installment in the Twin Tube family, the Twin Tube Blue. It features a two-channel, guitar preamp voiced for the blues. Also, it ses a duet of premium, mil-spec, subminiature, USA-made Phillips-Sylvania 6111 dual triode tubes.