Re: charge reactors

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: David Dean <deano@xxxxxxxxxxxxxxxx>

hi

or you could try this
http://www.pupman.com/listarchives/2001/July/msg01383.html

or-
An H-bridge rotary arrangement along the same lines that will charge the tank
cap to twice the power supply voltage on second and subsequent bangs as well
as eliminating the need for a charging reactor. Though the power supply is in
the circuit during the bang, the gap quenches when the tank cap is charged to
its level. At the next presentation the power supply voltage is presented to
the tank circuit with the same potential but opposite polarity.

Of course I have not tried this, and it may have unforseen problems, but then
again it just might work. It would be very important that the energy storage
cap be >> than the tank cap and rated for pulse duty.

later
deano

P.S.  a quick and dirty diagram @
 http://deanostoybox.com/temp/schem.jpg


On Saturday 07 October 2006 22:48, you wrote:
> Original poster: "S&JY" <youngsters@xxxxxxxxxxxxxxx>
>
> Earl,
>
> I have used 4 MOT secondaries in series for a DC resonant charging reactor.
> Of course, they need to be mounted on insulators and spaced apart, but they
> don't need to be submerged in oil.  The MOTs work fine with no airgap as
> long as you stay above the minimum break rate to avoid trailing arcs in
> your RSG.
>
> There is another way to run a DC resonant charging coil that avoids the
> need for the large iron core reactor altogether.  Instead, it just uses a
> small, easily built air core reactor.  It does require an extra set of gaps
> on your rotary spark gap.  The power supply resonant charges the MMC
> through one set of gaps, then discharges the MMC into the secondary with
> the other set of gaps.  This works wonderfully well, allowing break rates
> as low as you want with no risk of destructive trailing arcs, and
> effectively disconnects the power supply during the main bang.
>
> Contact me off list if you want more details on the alternate method.
> --Steve Y.
>
> ----- Original Message -----
> From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Saturday, October 07, 2006 12:38 PM
> Subject: charge reactors
>
>  > Original poster: "EARL RHODES" <wedz@xxxxxxxxxxxxxxxx>
>  >
>  > hi all mad earl newbie coiler just started working on a dc res coil i
>  > started copying steve conners single mot dc res supply that he used
>  > for his tesla 2 only it camr to the charging inductor and it is no
>  > longer stocked at maplins  ive read most archives on most sites and
>  > mots seem to be a substitute only for bad insulation woul sinking
>  > these in oil prolong the life of a string of mots say four in
>  > series  i would  like to know if this has been tried  thanx all