Re: Terry's DRSSTC

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>



A piece of straightened coat hanger attached with duct tape provides a nice
discharge point for initial tuning.  The copper pipe is also fine --- just
tape it down so the vibration from the RSG doesn't cause it to roll off
during operation.

Dr. Resonance


> I've been meaning to ask, is it OK to just lay a piece of copper pipe on
> top of the toroid sticking out to the side a little to provide a "jumping
> off point?" Or, does this require a more substantial connection to the
> toroid? Thanks.
> Paul Brodie
>
> ----- Original Message -----
> From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Tuesday, March 22, 2005 11:25 PM
> Subject: Terry's DRSSTC
>
>  > Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
>  >
>  > Hi All,
>  >
>  > Just thought I would update you on my DRSSTC stuff.
>  >
>  > My old toroid was getting "comments" like it was too small, old, and
beat
>  > up, "recycled junk" :-p  So I made a nice new one:
>  >
>  > http://drsstc.com/~terrell/pictures/P3220011.JPG
>  >
>  > Just 4 inch dryer duct, but I have two nice pizza pans between it now.
It
>  > is wider and stands up more from the secondary to maybe help fix the
arc to
>  > the primary thing.  It also tunes right at the last turn on the primary
>  > now.  I did not "calculate" that, but rather kept chopping the brass
>  > all-thread rod with bolt cutters till it tuned in ;-))  So maybe the
coil
>  > looks more "pretty" now ;-))))
>  >
>  > For testing, I sort of sit at the table like the Wizard of Oz!!!  All
this
>  > solid state stuff is really easy to play with and super predictable!!
>  >
>  > http://drsstc.com/~terrell/pictures/P3220012.JPG
>  >
>  > BTW - Tonight I managed to accidently click the thing into the
discharge
>  > mode while running, and the 3 amp protection fuse blew just like it was
>  > supposed to...  No problem at all with that "test".
>  >
>  > I played with tuning testing through the resonant point and easily saw
the
>  > 1st and 2nd mode shifts with an extra adjustable inductor:
>  >
>  > http://drsstc.com/~terrell/pictures/P3220014.JPG
>  >
>  > Just used 1/4 inch fuse clips there before everyone asks ;o))
Everything
>  > seems to match the models well but I seem to be using less total power
than
>  > the models predict.  Maybe that 220k+1pF/foot things needs adjustment
now
>  > ;-))  But have to run a lot more models to figure that out...
>  >
>  > I have DRSSTC protectors in-line now too:
>  >
>  > http://drsstc.com/~terrell/pictures/P3220015.JPG
>  >
>  > Not tested "yet", but they are in there for when I goof up next :o))
>  >
>  > I am very please with the little cheap Velleman scope thing:
>  >
>  > http://drsstc.com/~terrell/pictures/P3220017.JPG
>  >
>  > Very convenient to use and seems to tell me all I need to know!!
>  >
>  > I can't run big arcs here in the basement:
>  >
>  > http://drsstc.com/~terrell/pictures/P3220011a.JPG
>  >
>  > Seems to be a bit crowded these days :o))
>  >
>  > Cheers,
>  >
>  > Terry
>  >
>  >
>
>
>