Terry's DRSSTC

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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