Re: Ballast Puzzle

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

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

In a message dated 8/12/01 2:03:13 PM Pacific Daylight Time, tesla-at-pupman-dot-com 
writes: 


>
> Hey guys, 
>
> You don't even need a core to make a ballast.  My ballasts are just rolls 
> of 
> 8AWG THHN copper wound on a 1-inch wood rod 8-inches long. For 100 amps I 
> have approx. 14 layers of 38 turns each for a total of 6.25-inches in 
> diameter.  It weighs in at 30 lbs. For 50 amps use 2. The 8 AWG will get 
> hot 
> at 100 amps, however, and cooling time between runs is required.  We 
> violated 
> this rule at the Geek's Teslathon, and it stayed hot for an hour afterwards 
> (we're probably lucky the insulation didn't melt). 
>
> R. Scott Coppersmith 
>



sounds to me like you could use a total of four of these in series/parallel 
for 100A. 
Mike 
geek # 1144  G-2