I'm trying to source a 'heat sink case' for an electronics project. I want a U section aluminium extrusion, preferably with fins or at least some ribbing which will hold a PCB 220mm x 123 mm with some spare space. The devices needing to be fixed to the heatsink/case are down the two long sides of the PCB. Depth required is around 40mm.
I can find quite a few tubular extruded cases which might be the right size but I need U section to allow me access to connect up etc. in situ. (That's a U with one 'wide' side open)
Can anyone suggest where I might find something like this, it's just a one off.