Tim V wrote:There are two terminals on the left, and it looks like (to me) the second one from the left (that is broken off) is the one to use.
This is what troubled me, however the loose cable seems to be shielding a crimp plug (?) which slots neatly onto the tab on the first terminal, so I settled on that. Given both Flymo and Terry's comments (and the fact the iron seems to work), I shall stick on that for now.
Tim V wrote:That transformer doesn't look second user to me, they all look like that on the terminals.
Interesting - perhaps it was for testing the 110v winding as Flymo suggested. the 110 marking certainly makes sense from his and Terry's explanations.