Octavia (effects pedal)
The Octavia was an effects pedal designed for Jimi Hendrix by his sound technician, Roger Mayer. It reproduces the input signal from a guitar one octave higher and/or lower in pitch, and mixes it with the original and added distortion fuzz.
The Octavia consisted of an analog electronic circuit, which included a frequency doubler, envelope generator and amplitude modulator, together with additional frequency-shaping filter circuitry. The effect generated varied depending on use. For example, a clean tone from an electric guitar produced ring modulated overtones (as heard on the guitar solo in "Who Knows" by Jimi Hendrix.)
After Hendrix's death in 1970 one of the original Octavias became the basis for the redesigned "Octavia (TM)", manufactured by Tycobrahe Sound Company in Hermosa Beach, California, during the mid-1970s. A limited number of the devices were produced, and today a used one in good condition sells for over $1,000 on eBay. Stevie Ray Vaughan owned nine of these devices. Some versions of this and wah parapedals are being made under new Tycobrahe brand. 
- "http://www.guitargeek.com/gearview/156/". Guitar Geek. Retrieved 19 September 2010.
- "Roger Mayer Octavia". My Guitar Music. July 29, 2010. Retrieved 19 September 2010.
- Chicago Iron - Faithful Reproductions - Tycobrahe Octavia and Parapedal
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