never mind worked it out with my trusty multimeter. was F2. is a 10A fuse but oly had an 8A to replace it with tonight (but it works).
I assume if I take the old 10A into Jaycar they will have an appropriate 10A replacement?????
They will have the fuse.
My JB manual unfortunately does not have the fuse listings. Of then system 80 games I have/have had, F2 was a slo blow 5 amp (HH, BH & Spirit), although checking a few other manuals, the only other one I could find with fuse listings was Volcano with an 8 amp slo blow.
Hopefully someone has a better answer - but I would not put a 10 in there, suggest either the 8 as it might be the same as Volcano, or conservatively, the 5.