Puzzled

Similar looking (but different) DSO with terminals in different place? (yes, I know you probably checked the markings, but...)

Your not the only one.... first you mention 16 bit versions of a CPM like OS, followed by something about digital storage oscilloscopes. ;-)

I take it we are talking double sockets here?

Have you allowed for the possibility that either the new socket is incorrectly marked? (seems unlikely, but a test with a DMM will prove it), or, the existing wiring is transposed at both socket positions

I thought maybe he'd been decorated for Services to Handymankind

David

DSO - double socket outlet! Sorry, I was try to speak 'electrician'.

I suppose it could be, bought it from Wickes & the terminals are marked with letters and both old & new cable colours. I'll stick a meter on it.

The 'first' original socket is supplied by a cable coming through the wall from the house - live & neutral connected to correct terminals & my socket tester says its OK. The second original socket is also wired correctly & my tester says all is well.

Can these plug in testers be trusted?

So was I.

I thought electricians called them "plugs" :-)

Up to a point, although many won't test for N-E reversal.

Owain

An electrician would call it twin gang.

That would leave a cross over in the wire itself as a culprit - worse you would need two of them! That sounds unlikely.

Can you do us some photos?

For this sort of thing, usually.

In message , "Dave Plowman (News)" writes

to be confused with t-g potentiometer et al ?

Plug tops perchance, and that is the thing that fits into an outlet. :)

ASIDE:-

I've always thought of it as one gang per set of wires so two gang is two outlets or two switches etc whilst positions of the circuit controlled by the switches are ways . So a two gang two way switch is the Double switch type like you get in the hall covering the light at the top of a stair one set of switches downstairs and another upstairs each doing the opposite of what is already "set", a one gang one way is like a single light switch in a room . In our hall we have triple gang switch with two of the switches being two way and the third only being wired up for one way operation though it is capable of having the single way switch as two way, so a triple gang two way switch Pedants note this is a very loose definition and the wrong words (even phrases) may be used.

$eity that is as clear as mud. At least I know what I mean.

It's not as confusing as our American friends calling a two-way switch "three way" because it has three terminals. :-)

Frank Erskine wrote: mean.

Let's not get into diverter valves again :-(

Chris