Welwyn 3

It always used to amaze me that the girls who skilfully worked on the sub-assemblies hadn't the remotest idea what they were making was or was used for, and weren't actually at all curious.  This even went for my family relation, who was actually a supervisor, and I thought should have known a bit more.  Maybe there was an excuse if there were military uses, but one little assembly I inspected was obviously some sort of line matching attenuator.  It looked to me like something that Post Office Telephones might have ordered.

This didn't stop them making their own amusing terms up for stuff, though.  I suppose much of this was a hangover from "the war effort", when it was forbidden to talk about what you did, and a lot of information was only had on a need-to-know basis.