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I've been reading a few threads about isolation transformers outputting "higher than expected" voltages and the opinions on this topic seem to be mixed. Hoping the monitor experts here can help.

I just finished wiring up a power supply that will be power for a jamma cabinet. (Formerly an empty super-pac cocktail). Before connecting my G07 monitor, I obviously wanted to check what voltages the isolation transformer was outputting.

To my surprise, the isolation transformer it outputting 129VAC. (Without load, of course. Not sure if that makes any difference)

I checked my wall outlet and it's outputting 122.4VAC.

Now, I understand that a G07's input voltage is rated between 108VAC and 132VAC. So technically speaking it falls within the tolerance. However, 129VAC seems a bit high. Not sure why my transformer would be stepping up the voltage that much.

So is this transformer safe to use on a G07? From what I have been reading, it sounds like it would be fine in the sort-term, but in the long-run it could put stress on the G07 and components could fail faster?

What would you do?

Isolation transformer output voltage
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Wall outlet voltage
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Power supply
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Isolation Transformer
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