Re: Cooking with the primary

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "John by way of Terry Fritz <teslalist-at-qwest-dot-net>" <fireba8104-at-yahoo-dot-com>


The thing that is even worst is that many cell phones operate a 2.4GHZ only 
about 50MHz off of microwaves. Hopefully none of your coils operate at that 
frequency.

Tesla list <tesla-at-pupman-dot-com> wrote:
Original poster: "Paul Marshall by way of Terry Fritz "

My thoughts on this are "If a cell phone transmission may cause brain
cancer, what are these CW coils doing to us" ?



Paul S. Marshall





 >From: "Tesla list"
 >To: tesla-at-pupman-dot-com
 >Subject: Re: Cooking with the primary
 >Date: Thu, 14 Aug 2003 06:54:36 -0600
 >
 >Original poster: "sebastian gaeta by way of Terry Fritz
 >"
 >
 >Hi,
 >
 >I did a bit of accidental cooking with my 304TL coil. I used too large of
 >a topload, and too large of a tank cap. The large tank cap caused me to
 >use too few primary turns which causes a larger RF current to flow.
 >According to Bert H. too large of a toroid also ! caused some large
 >circulating currents to flow.This all added up to trouble, and caused the
 >bottom bolt on the secondary to get so hot that it melted the solder
 >connection. My wooden support burned all along where the bolt, and ground
 >strap contacted it.
 >
 >Continuous wave coils are much better at cooking than spark gap systems by
 >the way.
 >
 >Please be careful. When there is no secondary, and sparks to dissipate the
 >energy, you are going to have lots more RF floating around, which can be
 >nasty if you are wearing jewlery, and harmful to other electronic devices
 >nearby. You will also get an RF burn off of practically every thing
 >conductive that you touch, whether it is grounded or not. If your OFF
 >switch is metal like mine was, use a plasic rod or something to flip it
 >off with. If you absolutely need to touch something metal while the coil
 >is running you will need ! to equalise your RF potential by bonding to it
 >with a metal object that is already in your hand like a key or something
 >before you can touch it with your bare skin. When you wish to draw your
 >hand away, you will have to make contact with the key first before you
 >break electrical contact with your skin, otherwise you will draw an arc
 >and get an RF burn. This all sounds very bizzare, but welcome to the world
 >of high powered radio!
 >
 >Have fun, and play safe,
 >Sue
 >
 >Tesla list wrote:
 >Original poster: "John by way of Terry Fritz "
 >
 >Hello,
 >I came up with an idea after looking at induction heaters on the Internet.
 >I was wondering if one could remove the secondary coil from the middle of
 >the primary and instead place something to be cooked. At high enough
 >frequencies this should work.
 >
 >John
 >