On Tuesday, 31 December 2019 18:20:48 UTC, JimK wrote:
I believe the plug is a "Type B 6mm 2.1mm" according to wikidev
which has gone offline at the mo.
CPC plugs are only 2.1mm x 5.5mm.
Is that 0.5mm crucial?

I don't know, but by the time I've bought ten of them and paid postage they turn out quite expensive if unsuitable.

Owain