[time-nuts] No more 60Hz! TEC Elimination
Charles P. Steinmetz
charles_steinmetz at lavabit.com
Mon Jun 27 18:54:53 UTC 2011
> >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.
More information about the time-nuts