[bionicmerlin]

As far as I’m aware Or can remember.probably I the late 70s Some if not all Nettle Products became Delta After a few years out of the domestic accessories market MEM returned with the name Delta MEM. Eventually dropping the Delta name and just MEM . Well unto being taken over by Eaton .
They were not to bad a product. Some of the earth terminals were a bit flimsy. Their plug tops were very good and almost up to mk standards. Andy