RE: some new ideas for the SSTC guys

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

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

I think DC means there was NO electrical connection to the secondary!!  An 
old Tesla coil trick for when we want to really confuse everyone!!  ;o))

Basically, without a big load, the primary rings for a very long time.  The 
only "receiver" is the distant secondary coil that does manage to grab a 
very significant amount of the power anyway despite being not directly near...

A classic example that giant coupling coefficients are not needed for low 
loss coil systems....  I have seen wonderful demonstration videos of this 
"Richard Hull" but I don't know of any that can be easily downloaded off 
the net...

Cheers,

         Terry


At 04:54 AM 10/4/2004, you wrote:
> >I removed
> >the sec coil and placed it on a stand 10 feet away.  I used a 7 inch corona
> >ball on the bottom to prevent any corona and used a single tap which I
> >attached to the "normal" primary coil.  With some re-tuning it was again
> >spraying out 8 ft sparks.
>
>So you mean a kind of cross between an Oudin coil and a magnifier? I don't
>see any theoretical problem with it, but in practice, the problem is that
>the secondary coil is now connected straight to the primary, which means
>that the output arcs now pack a punch of 600V DC at several amps.
>
>Richie Burnett invented a slightly different variation on this, that
>base-feeds the secondary through an L-match network. In this hook-up, the
>tank cap connects from the base of the secondary to one end of the inverter,
>and the other end of the inverter connects to the secondary base through a
>matching inductor.
>
>Steve C.