Re: Terry's DRSSTC

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Paul B. Brodie" <pbbrodie@xxxxxxxxxxxxx>

Terry,
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
>
>