Octavia (effects pedal)

The Octavia was an effects pedal designed for Jimi Hendrix by his sound technician, Roger Mayer.

[1] It reproduces the input signal from a guitar one octave higher in pitch, and mixes it with the original and added distortion fuzz.

[2] 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 was used by Jimi Hendrix, and can be heard in guitar solos on the song "Purple Haze".

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.