OK Johan, I give up trying to do this myself! I cannot seem to find what is needed, at home or the net. The worst part is that I have now learnt that almost all new power adapters are switching adapters (to save power) and not all have enough noise suppression for the switching circuits in them. This makes one think: is there a market out there for noise suppressors?
On Elfa I could only find 1 AC/DC adapter for 2A and it says nothing about ripple or noise suppresion, only that it is a switching power adapter (Elfa: 69-975-84). It was the one I bought.
Anyhoo... Tell me what you need and how much I need to pay.
I really appreciate all the help with this.
/Errol