Re: What part of "unsupported"....

mroberds@xxxxxxxxxxxxxxxx wrote in <DndDl.5165$Lr6.775@xxxxxxxxxxxxxxxxxxxx>:
Mark L Pappin <mlp@xxxxxxx> wrote:
mroberds@xxxxxxxxxxxxxxxx writes:

For raising the line voltage, wire up a regular 120:X (X<120)
transformer in boost, or wire the "secondaries" of a 120:12.6 and
120:6.3 transformer together

and saturate the core of the second one when you give it twice the
mmf it was designed for.

Does core saturation cause that line-frequency buzzing sound? Because
I heard that last night, when I was giving your mom twice the MMF she
was designed for.

No; that's just laminations buzzing because the varnish that was
supposed to have soaked them didn't, or because some of them have
become separated from their neighbors. Now, they may have separated
because Things Got Hot, and Things may have Got Hot because of an
overload, and that selfsame overload, if it was present, may have
caused the core to saturate, but it's hard to tell. Sometimes the damn
laminations just fscking buzz.

One of the most impressive things I ever heard was audio modulation in
the lamination buzz of a Collins kilowatt AM transmitter. It was, of
course, in perfect sync with the voice going into the mike.

--
All children should be aptitude-tested at an early age and, if their
main or only aptitude is for marketing, drowned.
-- David Canzi, news.admin.net-abuse.email, 2001-03-21
.

Relevant Pages

  • Re: What part of "unsupported"....
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