My Z750 brick does .............

It's a really good idea to check transformer phasing anytime you're connecting multiple transformers.  I mark any non-polarized plugs so that I know which side goes into the wide blade (neutral) slot.

I guess we don't have to tell you that now.

Greg,

Since the new brick has a polarized plug and the older one does not, just reverse the older brick in the AC receptacle.

Greg,

   Use a plug adapter and do as Barry indicated, mark the adapter so you know which

way to insert the plug all the time.  Never had any problem with the plug adapters.

PCRR/Dave

I was not clear in what I said Barry, thus your confusion.

I had/have an older 750 w/o the polarized plug that I am  not currently using. I have marked it years ago for DCS use.

It was not in play with this. I bought the new one in case I needed it, and liked the fact it was already "factory phased." I pretty much use the 1000's now.

But imagine my surprise when buying a new one to get rid of the problem with the old one....I wound up with one out of phase anyway.

Thanks for the reply. Reversing was my thought...but I have to file the prong. Dale thinks that is a bad idea.

Dave, I responded to the adapter on the other thread.

Greg

Since you have an out-of-phase transformer when matched to others, I can't imagine what the problem with simply filing the blade down is.

John, I am pretty much "on track" with you, that was my original plan, and to mark the plug like my PW units.

You might not have visited the Electrical Forum where the other post is, but here is what Dale wrote as a reply to that suggestion;

" The problem with filing a plug is that if you had a fire or anything happened not even related to the plug,the insurance company could have an excuse not to pay your claim. Not that it does not work or is not a solution. Dale H"

The sad part is......he is probably correct! Hope no one's house burns down with all of those PW units out of phase. I know, they don't have prongs that need filing.

Still, I think that will be my course of action. Even easier than Dave's adapter....since all of my adapters are polarized also! I guess I could file that down!! 

Thanks to all. Still waiting for that "perfect reply" from some electrical engineering guru. Greg

I'd be more worried about the out of phase causing the very fire you're worried about.

I am with you John. Though, I am not really worried about any fire!

I am more irritated about buying the trans for the polarized plug fact and then finding it is wrong!

But, for $15, it was still a good deal!

Greg

Yep, for $15 I'd just smile and file the plug.

Hmmmm

Someone check me on this, but wasn't it a batch of the Z-1000 bricks that was wired wrong?  I suspect the newer Z-750 brick is fine.

But not having a schematic for the thing and opening it up, I cannot be positive.

Russell,

   Your memory is correct, also one time somebody put out identifying info as per the year they were made.  Heck for the money Greg stole this 750 Brick at, he should just purchase an old type plug adapter, and use it.  I would suspect there are both 750's and 1000's that this happened too.

PCRR/Dave

Greg,

   I agree the 750 is your problem, rewire or put a new industrial plug on her and you should be back in phase with the rest of your equipment.

PCRR/Dave