Hear hear, also everyone has to make a living and it is a nominal charge as you say. So nominal I cannot believe I am even writing this message about it…
Perhaps we need to get an upto schedule of fuses from naim @NeilS ? and publish as a sticky ?
One of the biggest users of fuses the xps-dr is missing from this list as is the cd555psu.
Also, a word of warning to read the schedule correctly ! The 115V versions look to be the same fuses as the 230V versions, just half the rated current ( but still marked as 230V rather than 115V).
The safest thing to do is to check the fuse rating on the rear panel. This saves any confusion with different brand transformers used over the years - as you found with your own 250.
…but do be sure you select the correct fuse for the applicable mains voltage, as they are different depending upon whether the unit is for 115V or 230V.
I just checked my 250, and it uses a 5A fuse. I think Neil was referring to my late olive 250 being different from previous 250s because it had a 600VA transformer.
Mine predates that. Believe there was a transformer change around the time the 135’s first came out (so 1984 *), from 400VA to 500VA…? Mine is one of those.