From: "Phil Allison"
Subject: Re: why there is "Round coil" transformer? what is the differencebetween ordinary one with "E" iron and "round coil" type?
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Date: Sat, 18 Jan 2003 17:03:53 +1100
NNTP-Posting-Date: Sat, 18 Jan 2003 16:53:01 EST
Organization: Telstra BigPond Internet Services (http://www.bigpond.com)
"Stephen Shaw" wrote in message
> On Fri, 17 Jan 2003 21:56:03 +0000, Robin G Hewitt wrote:
> >> For larger currents, the Torrid transformers are smaller in size than
> >> the Squarish looking "E" iron because the magnetic flux losses are
> >> smaller.
> > Hi
> > One word of warning though. The bolt holding the toroidal in place may
> > look like a convenient place to fix an earth tab, but it is then dead
> > to build yourself a one turn, magnetic dead short.
> > Such circuits usually fail the smoke test :o)
> > best regards
> > Robin G Hewitt
> Any toroid mounting kit I've ever bought has had large insulating red
> which fit between the transformer and the mounting plates, so I doubt the
> veracity of this statement.
** I doubt you read the damn statement - it refers to the bolt through
the middle which if you connect an earth wire to the top of makes a shorted