Missile Command, 2 ISO transformers?

hindered

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So I have an old Missile Command that has been parted out. There were two ISOs in the cab, one standalone, and one that is part of the power brick assembly. I'd like to use the standalone ISO in a JAMMA cabinet for the monitor. How can I test whether the ISO is good, and how to wire it up? There are no markings on the ISO, and 5 wires going into/out from the transformer.

Pics to come...
 
If it's part of an Atari tranformer brick assembly, it's not an "iso."

What's commonly referred to as an "iso" is a 1:1 isolation transofmer. Technically, all transformers "isolate" (the secondary side from the primary), but a 1:1 ONLY isolates without stepping the voltage up or down (which most transformers do). An "iso" is a special, and very simple, tranfromer. They typically have two lugs at the bottom, and two more at the top.

However, you said the transformer in the power brick only had 5 wires going to/from it. Normally I'd expect many more than that for a Missle Command (Atari) xformer... like a dozen or more.

The pic should help...
 
It's NOT part of the brick assembly. There is one that is attached to the power brick itself, and one that was loose or bolted to the bottom of the cab. I'm talking about the latter. Pics will come tonight.

Edited to add: Attached is a bit from the manual showing the power brick. This was in the cabinet, and is NOT what I'm talking about. There was an additional transformer in the cab, which I'd like to reuse.
 

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Oh, my fault. Sorry.

In that case, a standard issue isolation transfomer will look more or less like this:
http://thearcadeboneyard.com/assorted_electrical/images/isolation transformer 15.JPG

The two wires at the bottom are the AC-in, and the two at the top are AC-out ("bottom" is the side with the mounting flanges). Most have some sort of markings to indicate its rating (in Watts, Volt-Amps, or Amps).

If you have more than 4 lugs, it's possible that the secondary is center-tapped, or perhaps there's a ground lug for its case.
 
Here's dem pics:

DSC07305.jpg

DSC07304.jpg


Like I said, no markings, and no lugs.
 
Whoa, that's a beast of a transformer. Looks kind of like the one that was installed in a pinball machine I bought from Canada. Apparently electrical code up there required an isolation transformer for the whole machine. Mine had a standard 3-prong cord & a 3-prong plug on one side.

It's hard to be sure without markings, but my guess is that it likely is an isolation transformer (and a heavy-duty one at that). You should be able to take the side covers off and see the lugs where the wires connect to, and/or probe the wires for resistance to see what's connected to what and reverse-engineer it.
 
That green tag looks like an Atari tag. Can you read a part number on it??
 
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