RE: [TCML] Odd side effect--from a coil?

["Richard Schmuke" <rdj@xxxxxxxxxxxx>]

Just a note about stainless steel, poor quality and rust. 
The stainless used for antenna whips is normally 17-7. 17-7, 17-4, 15-5,
13-8 all are heat treatable, considered high grade SS, many used for
fasteners but they will rust and/or corrode more than the cheaper, softer
300 series. Also the ones I have listed have different responses to a
magnetic field. Most can be held by a magnetic chuck when grinding.
Rich , KdØzz
My wife complains I mess with stuff too much but I have a "tinkering virus"


Rich 

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of davep@xxxxxxxx
Sent: Wednesday, January 20, 2010 8:09 AM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Odd side effect--from a coil?

>  What amazes me is that stainless steel is non magnetic unless it is of
> the poorest quality that would rust, so that feat would take an enormous
> magnetic field.
   Varies with the 'stainless'  Many sorts thereof.

> I have heard tales of strange phenomena around coils tho. Like some
> of the old timers stories of seeing St. Elmo's fire coming out of the
> walls.
   I fail to see anything strange about that.  Corona is standard in
   high fields.  Reported (pre Tesla) by Lodge...

>>I don't know hardly anything about magnets but I was under the impression
>> that you need a huge magnetic field to magnetize things.
   Varies with the 'thing'.

>>> I wear wire rim glasses. About 18 months ago I got new frames made of
>>> stainless steel.
    Various grades of stainless.

>>> After several months of experimenting with my modest tabletop coils,
>>> I have found my glasses frames are magnetized.
    It would be interesting to know what other, if any experiments?
    Were the glasses nonmagnetic at start?

    best
     dwp

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