+1. I have used Voodoo Lab for close to 15 years with no issues and I just got a Cioks Adam for my little board. Both do the job. Cheap power supplies are never the right answer.I've used Cioks and Voodoo Labs and both are good.
I've just double check and the current pedal list is:The different VL power supplies offer different outputs. Can you post what pedals you have? I think the Pedal Power 2 is what most people get. ...and, maybe an adapter to double the voltage or, amperage of one of the outputs.
As Mark said, cheap power supplies are never the answer. Sooner or, later, you need to bite the bullet and, spend as much as that really cool overdrive you are gassing for.
That being said, you MIGHT be able to get rid of the high pitched whistle by not hooking up everything to one cheaper, non-isolated supply. The big no no is powering dirt pedals AND time based "like a delay" pedals with the same supply that does not have isolated outputs. Have you tried removing pedals to get rid of the whistle?
I just had to Google what those two things are. I'm not sure we can get 1 Spot in the UK but we can definitely get AC wall adapters. Why do you recommend a separate one for the delay?A 1 spot and a wall wart for the delay would be a big improvement then. Pedal power 2 would do all of those.
That being said, you MIGHT be able to get rid of the high pitched whistle by not hooking up everything to one cheaper, non-isolated supply. The big no no is powering dirt pedals AND time based "like a delay" pedals with the same supply that does not have isolated outputs. Have you tried removing pedals to get rid of the whistle?