Re: OLTC Update - OLTC-2

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Esondrmn-at-aol-dot-com>

In a message dated 9/4/02 9:31:32 PM Pacific Daylight Time, tesla-at-pupman-dot-com
writes:

- snip -

>
> So it's time for a new coil.  The changes that need to be made are:
>
> 1. Go to a very large diameter secondary.  Maybe like 18 inches!  This
> allows much higher Q using less and larger diameter wire.
>
> 2. Possibly go to a larger toroid.  But realizing that the voltage ratio
> (Lsec/Lpri) needs to be maintained.
>
> 3. Possibly go to 15 IGBTs.  That helps the losses and does not stress them
> with so much with super high current.  Probably worth the added cost. 
>
> 4. Put the primary inside the secondary.  If the secondary is larger, all
> the electronics can go inside the primary with the secondary on the outside.
>
> 6. Don't use SonoTube.  It is known for low Q.  That is critical here.
>
> 7. Better balancing of everything for power transfer to the streamers.
>
> 8. Perhaps go to lower power but higher frequency with less primary
> capacitance.
>
>
> So I am think about the next coil to solve the Q problem.
>
> Cheers,
>
>     Terry


Terry,

Sounds good - but, when are you going to run this existing coil up to full
power???

Ed Sonderman