Re: Bombarder

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

12 kV figure is open-circuit (no load). 600mA is when it's dead 
shorted. The 5 kVA is the power after the voltage drop when it's dead 
shorted and putting out 600mA (8333v). Nst's do the same thing, tho 
those usually drop to around half oc voltage. You can ballast it more 
for less current. Or use a variac and run at half voltage/current, 
tho 6kV is a bit on the low side with 300mA (small gaps get hot fast 
with that much current).

Mike
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, November 21, 2005 11:19 AM
Subject: Re: Bombarder


> Original poster: "MIKE HARDY" <MHARDY@xxxxxxxxxx>
>
> Just found out the primary and secondary are opposite each other. So this
> means it's current limited, right? Now I was wondering if a ballast can be
> used to further reduce output current for testing, and running smaller
> coils? Also the ratings are a bit confusing. It has 12 KV  out at 600 MA,
> but it is rated at 5 KVA. This would be about 417 MA. How does this figure?
> ----- Original Message -----
> From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Saturday, November 19, 2005 4:12 PM
> Subject: Re: Bombarder
>
>
> > Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>
> >
> > Some do, others don't. They way to tell is if the primary and
> > secondary are on the same side of the core (usually primary inside of
> > secondary) then you do. If they are on opposite legs, then it's like
> > a giant nst.
> >
> > Mike
> > ----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
> > To: <tesla@xxxxxxxxxx>
> > Sent: Saturday, November 19, 2005 1:02 PM
> > Subject: Bombarder
> >
> >
> > >Original poster: "MIKE HARDY" <MHARDY@xxxxxxxxxx>
> > >
> > >My partner in coiliing, Stan just picked up a Thordson dry bombarder
> > >tranny. 12KV, 5KVA. Do these need current limiting like pigs, and PT's?
> > >
> > >
> >
> >
> >