Here is LaceSensor's version of Lovetone DoppelGanger analog phaser.
You can find all info, build doc, bom and manual on Madbean Forum here (free login required)
You could also buy PCBs when available.
29/11/2016 Layout updated & Verified: removed cut next to bottom right corner TL074 pin 11.
Here is a video of the original pedal (slightly different from this version)