How-to-build instructions:
SJ electric, class F in N-scale!
Scania Vabis CF type (H0 + N-scale)
(only in swedish language!)
On Internet, you can also find following instructions (N-scale, also in swedish language!):
SJ electric, class Ra "Rapid"
Diesel railcar, class Y1
SJ EMU, class X52 "Regina"