It’s an exact copy of the retro sonic chorus which works well with guitar. just gotta sort out the stereo bit and also have a poke around with a scope to properly adjust the bbd output trim pot.
I would also need to make an adjustment so people can source their own dc-dc module, mine is a +/-14v(Runs from your regular 9V. ), same as the retro chorus. Leave it with me and I will work on these issues.