This is a vintage 1978 Roger Mayer Electronics Rocket Series Octavia electric guitar fuzz/octave effects pedal. This particular example is in very excellent all original condition and features the rare round optical switch. Notoriously broken and intermittent, this pedal and it’s optical switch, work perfectly. The Octavia produces a sound that is an octave higher than the note played. This doubling effect is accomplished through electronic mirror imaging techniques that are program sensitive and also respond to the feed forward inputs of the player. The electronic circuitry is analogue in design and will react faithfully to all the subtleties and harmonic overtones from the guitar. This particular example works perfectly. This very rare variety features the plexi “RM” control panel as well as the Autograph Edition plexi bottom plate. Many of the components within date to 1978. The cosmetic condition of this unit is above average, displaying usual oxidation and typical wear patterns.