Re: Tried again tonight, still have problem - Cap size

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

Original poster: pomnept-at-comcast-dot-net 

Thanks, Ed and Gerry, my primary cap IS 32 nf.  I am usually a microfarad 
kind of guy but for some reason I thought I'd start using nanofarads and 
made a dumb mistake.  Sorry for the confusion.

Robert Hanford
 > Original poster: Esondrmn-at-aol-dot-com
 >
 > In a message dated 12/6/03 11:56:15 AM Pacific Standard Time,
 > tesla-at-pupman-dot-com writes:
 >
 > Robert,
 >
 > The message I just read from Gerry R about your primary capacitor size
 > seems like a very good question.  I have a 6" secondary with 27.6" of # 22
 > wire.  I use two toroids larger than yours.  My primary cap is .05 ufd, or
 > 50 nf.  The resonant frequency of the system is about 106 khz.  If your cap
 > really is 6 times larger than mine, I don't see how your system can be in
 > tune.  Can you give us all the design details of your system so we can run
 > some numbers on it?  Or, is the cap really 32nf?
 >
 > Thanks, Ed Sonderman
 >
 > >Hi Robert,
 > >
 > >      I'm just guessing, but it sounds like your coil is setting up a 
node too
 > >near the top of the secondary. You might try changing the size of the tank
 > >capacitor, or rebuilding the secondary with different dimensions/wire. If
 > >you suspect more breakout at the bottom of the toroid because of roughness,

 > >why not just flip it over?
 > >
 > >Ryan Molecke
 > >
 > >-----Original Message-----
 > >From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > >Sent: Sunday, November 30, 2003 9:24 AM
 > >To: tesla-at-pupman-dot-com
 > >Subject: Tried again tonight, still have problem
 > >
 > >
 > >Original poster: "Robert Hanford" <pomnept-at-comcast-dot-net>
 > >
 > >
 > >Hi all,
 > >My secondary doesn't appear to have any additional marks inside it. The
 > >toroid is 27.5'' from outer edge to edge and 8'' diameter aluminum duct
 > >covered in al. tape. The problem is that all of its output is directed
 > >donwards. I have raised the secondary quite a bit. The toroid too.The 
system
 > >uses 2 15k-at-70ma NSTs ,320 nF primary cap and a sucker gap set at .25 ".
 > >Secondary is 6.32''. I don't see any visibly sharp objects on the bottom of
 > >the toroid, but will look at that closely. Still looking for clues. Didn't
 > >come up with anything exactly like this on pupman search. I suppose /hope
 > >its something dumb/simple. Still looking for ideas!
 > >Many thanks,
 > >Robert Hanford
 >
 >
 >
 >