Instek Totally recomended...
http://www.gwinstek.com/en/product/productbcategory.aspx?pid=38but in the $200eu range?
Instek SPD-3606 is the best Switching D.C. Power Supply, but is in the $8OOusd. range.
GPS-x303 Series, best toroidal linear DC Power supply,
the gps-4303 is in the <$8OOusd range.
the
GPS-2303 is in the <$4OOusd range. fits the bill.
GPC-Series are classic EI transformer design (the only brand with selectable input voltage 110v,120v,220v,240vac), top quality.
you may want to ask yourself, if you want more AMPs,_? More Volts,? or more Displays.?
GPC-1850D = (0~18V/0~5A)x2 + (5V/3A)x1, 3-channels.
GPC-3030D
GPC-6030D
GPC-3060D
GPC-3030DQ
...
or you can buy singles and link the controls, displays & outputs serial or parallel, thereĀ“s no need to be a 2-ch, unit.
many options available....
EI transformer or switching.
many voltage & amp. ranges,
from the popular GPS, to the super expensive GPR-U.
SPS are switching.
GPS-xx0D are the EI.