This Pedal is currently available.
Analog Harmonic Synthesizer
The PLL, from Elta Music, is an analog harmonic synthesizer. It turns your input signal into a square wave, and then multiplies or divides the frequency of that square wave, providing overtones and undertones from the original pitch, with extreme timbral intensity. The signal can be multiplied and divided simultaneously, providing an effect like chords. The tracking of the pedal can be adjusted according to the loop track control.
PLL-4046 Features
    Phase Locked Loop pedal
    Division and Multiplication of input frequency
    Chord playing type mode
    Footswitchable FUZZ, MULTIPLIER, DIVIDER all available simultaneously!
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These merchants probably sell this module. Huh?