Re: Don't throw out the oven!

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

Original poster: "Christopher Boden by way of Terry Fritz <twftesla-at-qwest-dot-net>" <chrisboden-at-hotmail-dot-com>


Yes but if memory serves a Faraday cage is good from it's design freq on 
down (not up). Since Microwaves work at very high freqs (GHz I think) then 
the KHz range of a coil would be just fine for it.

Now, if you build a tiny coil and put it inside the box, it may not work 
since the tiny coil may have a freq higher than the cage can hold. The upper 
freq limit is set my the largest opening of the box, and it's relationship 
to the wavelength. Basicly it's like you can't fit something with a 2" 
wavelength through a 1" hole or something like that. One of the RF guru's 
(like Jim :) ) understand thes things far better than I do, but I *think* 
that's how it works.

Please correct me if I'm wrong, I'd like to know for sure the reasons WHY a 
faraday cage works.


Christopher "Duck" Boden Geek#1
President / C.E.O. / Alpha Geek
The Geek Group
www.thegeekgroup-dot-org
Because the Geek shall inherit the Earth!

"He had that rare weird electricity about him--that
extremely wild and heavy presence that you only see in
a person who has abandoned all hope of ever behaving
normally." --Hunter S. Thompson



>Original poster: "Mr Viggy by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><LittleViggy-at-alum.manhattan.edu>
>
>But, wouldn't a microwave oven be designed to keep microwaves inside,
>not the complete RF range?
>
>Viggy
>
>Tesla list wrote:
>
> > Original poster: "J. B. Weazle McCreath by way of Terry Fritz "
> >
> >
> > Hello Coilers,
> >
> > While parting out yet another microwave oven I'd been given by the
> > local Salvation Army (one can never have too much "stuff") I had a
> > thought about a use for the actual housing itself.
> >
> > Since the oven part is designed to keep the R.F. inside, it should
> > do an equally good job of keeping R.F. out.  In other words, it is
> > a ready made faraday cage!  A great place to put anything that you
> > don't want zapped while firing your Tesla coil!
> >
> > 73, Weazle, VE3EAR/VE3WZL
> > G-1#1214
> >
> > Listening: 147.030+ and 442.075+
> > E-mail:    weazle-at-hurontel.on.ca
> >            or ve3ear-at-rac.ca
> > Web site:  http://www.hurontel.on.ca/~weazle
> >