Re: Primary Size - 1/4", 3/8", 1/2" ? ? ? ?

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Tesla729-at-cs-dot-com>

In a message dated 9/14/02 6:22:33 PM Pacific Daylight Time, tesla-at-pupman-dot-com
writes: 
>
> Just a quick question . . .
>
> Just finished my 10" x 45" secondary coil and need to create my primary.
>
> Right now I'd like to size my primary for current duty (up to 5kW) but also
> for the future up to 10kW power.
>
> Some people told me 1/4" was fine, but I think this is too small?  What do
> you think?  1/4, 3/8 or 1/2"  or bigger????
>
> Thanks
> Dan



Dan, If you plan to ever drive 10 kVA, I would strongly suggest at least
1/2" copper tubing for your primary. My 10 kVA piggy powered coil uses
5/8" copper tubing for the primary and this may be slight overkill on my
part, but I'd rather ere on the side of too big than too small :-)

Coiling in Memphis,
David Rieben