Re: [Fwd: Magnetic Field in a Flat Spiral]

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

Original poster: "marc metlicka by way of Terry Fritz <twftesla-at-qwest-dot-net>" <mystuffs-at-orwell-dot-net>

David,

Tesla list wrote:
> 
> Original poster: "David Sharpe by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <sccr4us-at-erols-dot-com>
> 
> David Sharpe wrote:
> 
> > Ed
> > Not doubting may have to go to NIB or SaCo to get
> > BH product high enough to do the job.  However if
> > I mount in a 'C' magnetic armature (1), and shape pole
> > faces to focus what magnetic flux we got (2), we may be
> > surprised at the available flux density.  The magnetron
> > ring magnets are cheap, compared to a rare earth, and
> > magnetic quenching was captured on a video tape at
> > Richards nearly 8 years ago, using a WWII Alnico
> > magnetic radar magnet.  These modern ferrite magnets
> > are at least 3X to 5X stronger then first (and second)
> > generation alnico products.  Worth giving it a whack
> > and see what falls out of it.

How about electromagnets? The time delay between initial current pulse
and magnetic activity would give an interesting twist to "tuning"?
 I think the diac\Triac pair would work, but then a real circuit?
I like it!

Marc M.


> >
> > Regards
> > Dave Sharpe, TCBOR
> > Chesterfield, VA. USA
>