Self denotes the lack of agouti (the banded hair) and can ALSO be used as the name of a black animal.
I know, confusing, but thats the way I learned it and I tend to fall back into that terminology.
So, its like this... If both parents WERE het for PED, you would have gotten:
Champages [PED on non agouti]
Ambers [PED on agouti]
Blacks (if the agouti was het for black)
and Agoutis (agouti is dominant)
But since you didn't, that is a strong suggestion that your parent rats are het for albino.
You would have gotten
Agoutis
Blacks (again, if the agouti rat was het for black)
albinos