In article ,
David Holgate wrote:
But isn't this the standard way of mounting a device with a 'live' tab?

Probably is--this is the first time I've assembled such a kit, so I'm
learning as I go along. :-) The kit just said in the standard way, with
no further details given.

Ah - right. I thought when you mentioned standard mounting kit in your
first post, you'd got one to hand.

Maplin in the days when they did their own kits enclosed a Constructor's
Guide with every one, which gives clear instructions and diagrams for all
this sort of thing. If you send me your address, I'll post you one - being
a good Aberdonian I throw nothing out. ;-) It's a very useful booklet.

--
*My designated driver drove me to drink

Dave Plowman London SW 12
RIP Acorn