Re: The RAT coil.

["Tesla list" <tesla-at-xxxxxxxxxx>]

Original poster: "R.E.Burnett" <R.E.Burnett-at-newcastle.ac.uk> 


Hi Finn,

This looks like a very flexible Tesla Coil,  and is beautifully built too.
It should provide an excellent test bed for your research,  I wish I had
one !

I did some work with uneven spaced firings,  and the ability to adjust
each firing point in real time is so valuable because there is a lot
of interaction between each firing.

I took a look at the charging voltage waveform shown on your page:

http://home5.inet.tele.dk/f-hammer/charging.jpg

The two flat portions in the trace are seem unusual.  I have never seen
this behaviour before,  and I usually have the scope connected when I run
my coil.  Do you have any idea what is happening in these periods where
the voltage is almost constant ???
							Cheers,

							-Richie,

On Sat, 2 Dec 2000, Tesla list wrote:

> Original poster: "Finn Hammer" <f-hammer-at-post5.tele.dk> 
> 
> Gang!
> 
> I probably should have written a better destription of my new coil than
> the one following, but I just cannot hold it anymore, it had first light
> today at dusk, pictures were taken, and here they are:
> 
> I wanted a small, sexy coil like Brent Turners, and along the way, I
> decided to make it a Realtime Adjustable Teslacoil (RAT) so these
> features were built into it. The tapping point is adjusteble while the
> coil runs, as well as the 3 electrodes for the SRSG. I had planned to
> make the coupling adjustable too, but this has to wait till later.
> Powersupply is 4 MOT`s in series, delivering enough power for the 4 feet
> of streamer that I wanted with this coil.
> 
> http://home5.inet.tele.dk/f-hammer/coilandme.jpg
> 
> Setting the coil up requires a scope, and the fiberprobes that I built
> last year. I intended this coil as a testbed for all the theories that
> are passed around. One of these is that the electrodes have to be spaced
> irregularly if the bangsize should be equal, and this is again
> confirmed:
> 
> http://home5.inet.tele.dk/f-hammer/charging.jpg
> 
> Does a coil like this make sparks as intended? Have a look below, just
> those 4.5 feet that it was designed for.
> 
> http://home5.inet.tele.dk/f-hammer/firstlight2.jpg
> 
> I`l write up a page for this coil later, when I get the time.
> 
> Cheers, Finn Hammer
> 
> 
> 
>