As a few people have emailed me about power supplies for this circuit over the last few months, I'll just do a quick post about it for anyone else building one of these.
I usually test whatever build I do with a 9v battery with a short battery clip to DC plug. This is not a circuit where an internal battery clip can be used because there is simply not enough current in a 9v battery to power it. The circuit itself runs off dual rail charge-pumped power, so that's +14v, -14v & ground (a big ask for a 9v battery). When I tested it with a battery it did manage to run the vibrato mode, but not the chorus mode.
So moving on to power adapters. The majority of 9v power adapters available, including those sold in music stores touted as being designed for effects, are all switch-mode power supplies. Sure they can run a daisy chain of common Ibanez/Boss pedals off the one 9v adapter, but not this particular circuit. It simply doesn't like switch-mode power supplies & creates a very loud hum which makes the effect unusable.
And so starts the quest for the ideal "isolated" power supply.
I ended up buying a "Caline P1" power supply.
It provides 5 x 9v outputs at 500ma, along with options for 12v, 15v & 18v at 1000ma.
I've attached a photo so anyone interested can have a look at the size of it next to a common Boss pedal.
As I said to Ricotjuh recently, if I was looking for something to use in a pro touring rig, I'd be looking at a more reputable brand of isolated PSU for reliability, even if it cost $500 compared to $50 for the Caline P1, but I did find that it's adequate & works out of the box. Whether it lasts remains to be seen, as such I'm not recommending it, but for testing builds etc it's fine for myself. As far as the fussy power supply requirements of this CE1 are concerned, it works without hum off 9v povided by the Caline P1. With a few other builds for me to finish up later that require an isolated power supply, the Caline P1 will be handy for those as well, but I repeat, if I was going to tour with some of these demanding builds, I'd shop for something confirmed to be reliable...
I'll just add that the Caline P1 had an 18v power adapter in the box with a bundle of individual DC cables...