This Pedal is currently available.
tape warble emulator
PT2399 based envelope optical modulator. 'Lag' control manipulates the single repeat delay time, with a full wet/dry 'mix' knob. 'Warp' controls the amount of modulation from the LDR network, also equipped with a master 'Vol' pot. More intense or drastic modulation can be audibly heard when engaging the 'more' switch. enjoy.
The sensitivity of modulation achieved is based on input level.
https://www.retroactivepedals.com/shop/dtljcnibu348l2jma5qjjmn3mhaznn
Retroactive Pedals Retroactive Pedals
Retroactive Pedals Dot Chaser