Thanks fibregeek - I think my confusion is coming from not fully understanding the requirements. Is 12v the absolute target? or is there a range of say 10v to 14v?
The reason I put the one with only a current control in there was because I thought that it was the current you adjusted and monitored?
So what does varing the voltage impact? I think I understand how the current is working (in a very basic sense anyways).
If I did want to anodise all 4 parts at once (for time) then I would need a 14v 30a psu right? I know there are cooling issues but I would of course deal with that.
Thanks again
EDIT:
Okay - i'm working out the forumlas based on LCD right now to get a good handle on things so please ignore the rather stupid statements above.
Can you tell me how though you work out the potential voltage required? I can see how to work out the amps but as I see it PAR will increase and then decrease - is there a way to formulate the potential maximum? or is this just based on tests?
Just on the psu front how about this one:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...e=STRK:MEWA:IT
I'm still looking around
Thanks
J