Re: Revamping an Old Coil

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

Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>

Hi there,

On 6 Jun 2002, at 7:08, Tesla list wrote:

> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<SageGaspar-at-aol-dot-com>
> 
> Hi!  I recently posted something about trying to get an old Tesla coil back
> into working condition, and I took the pictures that were requested:
> 
> http://members.aol-dot-com/sagegaspar/tesla1.jpg
> 
> and
> 
> http://members.aol-dot-com/sagegaspar/tesla2.jpg
> 
> The outside coil isn't connected to anything, the inside coil is connected
> to those two metal spheres (spark gap?) to the best of our knowledge, and
> that's about it.

It looks like a halfwave coil and the "spark gap" is in fact the 
output "gap". It is connected to each end of the secondary. I can see 
all sorts of problems arising if any substantial power is applied and 
the output gap is opened up to a reasonable spacing. The clearance 
between primary and secondary would be hopelessly inadequate if it 
was tuned properly. 

Regards,
malcolm

> We have access to or can build an appropriate capacitor, we've seen some of
> the calculators out there, and we can provide either a standard AC outlet
> or a power supply.  What do we need to get our hands on in addition to
> these things, and how do we hook everything together?
> 
> 
>