RE: new secondary....... (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sun, 23 Sep 2007 15:21:49 +0000
From: david baehr <dfb25@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: new secondary....... (fwd)


Hi Bart,
 
               The 6" coil is starting to look like to be the best choise.
 
              Dont know why I need a larger coil anyway, my 4" dia coil is allready hitting the heating ducts, walls, etc in my basement ;-) . I run in da garage sometimes,...but all da main house wire run above and I have to watch that:-(.
 
    a few years back I got rid of all  my 'BIG' coil stuff, saying I was gonna downsize to smaller, table top type coils,..now Im drifting slowly back to larger coils. ..WHATS WRONG WITH ME??!!  HELP !!!!!
 
                         Thanks again ,dave
 
 
 
 
> Date: Sun, 23 Sep 2007 07:26:23 -0600> From: tesla@xxxxxxxxxx> To: tesla@xxxxxxxxxx> Subject: Re: new secondary....... (fwd)> > > ---------- Forwarded message ----------> Date: Sun, 23 Sep 2007 00:57:48 -0700> From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>> To: Tesla list <tesla@xxxxxxxxxx>> Subject: Re: new secondary....... (fwd)> > Hi David,> > If your going to use #26 and have 2100 ft of it, I would recommend the > 6" coil (if you want to do an easy coil) as you can at least get to a > 4:1 hd with 1325 turns closewound. The 8" size will take you down to a > 3:1 hd. It will work, but the topload to primary sure gets close.> > I've wound an 8.5" coil with #24, but it has 1789 turns on it. Not the > most optimum coil in the world (high Rac and Rdc), but it has worked > fine with an hd near 4.5:1. You can of course go that route as well, but > in your case you would be 100 turns shy of 2000 for the same hd as my > own. The coil will be even higher in Rac and Rdc (significantly higher > with Rdc due to smaller wire size). Would also need 4200 ft of wire to > do it. These high turn coils work, but they take higher power to achieve > spark lengths that could otherwise be done with a lower turn coil at > lower power.> > If your ambitious, you could also wind a spacewound coil with .02" > spacing to do a 36" length with 4.5:1 hd at 1000 turns. That drops Rdc > and Rac down significantly back to the norm. Coilers have wound coils > this way using filament along side the wire as you wind it. Takes some > concentration and patience, but doable.> > Take care,> Bart> > > > > > Tesla list wrote:> > >---------- Forwarded message ----------> >Date: Sat, 22 Sep 2007 16:15:18 +0000> >From: david baehr <dfb25@xxxxxxxxxxx>> >To: tesla@xxxxxxxxxx> >Subject: new secondary.......> >> >> >Hi, > > just looking for a quick opinion , I now run a 4" dia. sec coil , and> >in the quest for longer sparks, was gonna wind a 8" coil.> > > > 3kw max available power. I have plenty of #26 wire, but, maybe to> >small for a n 8" coil ??,.....or, with 3kW , I should wind a 6" form ?> > > > Many Thanks, neondave> >_________________________________________________________________> >Gear up for Halo� 3 with free downloads and an exclusive offer. It�s our way of saying thanks for using Windows Live�.> >http://gethalo3gear.com?ocid=SeptemberWLHalo3_WLHMTxt_2> >> >> >> >> >> > > >> > > 
_________________________________________________________________
Kick back and relax with hot games and cool activities at the Messenger Café.
http://www.cafemessenger.com?ocid=TXT_TAGLM_SeptWLtagline