>Running the transformer that way won't burn it up at that instant, it just
>causes it to run hotter, because it's closer to saturation, and it shortens
>the life span a good bit.
I have yet to hear of any evidence for that being a problem with
US kit here in Denmark, probably because most kit is not run at
the extreme top end of its temperature specification.
I once was retained by a US manufacturer to determine why its
high-end amps and preamps had a nearly 100% failure rate in Europe
and Japan. It was their power transformers, which lacked sufficient
core for 50 Hz operation -- they overheated and opened the internal
thermal link. One customer had "repaired" his by digging out the
thermal link and bypassing it with a short. His got hot enough to
cook the paper and enamel and produce smoke.
Best regards,
Charles
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