> Hello,
>
> I have an old 19" A100 system, made before 2002, that has blown
> it's fuse - 250v 100mA T (slow blow). The power supply is a Hahn
> BV UI 394 0088, 2x115v 600mA.
>
> Should I replace it with the same fuse, or something else - like
> 250v 250mA T
>
> Thanks for the advice,
>
> David

The fuse values depend upon the mains voltage which I cannot see from your
message. You find a list of the fuse values for all A-100 cases on our
website:

www.doepfer.com > FAQ > A-100 > values for A-100 fuses

Best wishes
Dieter Doepfer