RE: tesla design

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>

Hi Adriano:

Capacitors from X-ray machines are designed to filter the HV DC, and
have no need of high pulse-current capabilities or low-loss dielectrics
at high frequencies.  While salt water caps may be less than ideal, it's
probable that they'll out-perform an X-ray machine cap.

Since you already have one, I'd suggest trying it, and using a larger
primary to compensate for the lower-than-optimal cap value.  You should
be able to reduce the capacitance of your salt water cap to match the uF
value of the X-ray cap, and compare the performance between the two
caps.  If the X-ray cap does in fact work better, then think about
finding a second one, but I suspect you'll be better with the salt water
cap.

Regards, Gary Lau
MA, USA

> Original poster: "Adriano Mollica" <adrianomol@xxxxxxxxxxx>
>
>
> Hello List,
>
> It's been a while i don't write here, but I got your emails every
night.
>
> I think that the major weackness of my previous coil was the
> capacitor tank. I used the "classic" salt water cap. Recently I was
> able to buy a nice capacitor coming from a x-ray machine: 10.000 pF
80.000 VDC.
> But from my calculation, I at least will nead two capacitor like
> that, that is impossible.
> I will like to use it for a nice tesla coil.
>
> I also have a NST 6kv 30mA 220v 60hz (I live in italy).
>
> Someone have an idea?
>
> all the best.
>
> Adriano