[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.

Best regards,


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