Re: BC coilers

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

Original poster: "harry by way of Terry Fritz <teslalist-at-qwest-dot-net>" <harry-at-prcn-dot-org>


----- Original Message -----
From: "harry" <harry-at-prcn-dot-org>
To: <tesla-at-pupman>
Sent: May 29, 2003 10:36 PM
Subject: Re: BC coilers


 > dan
 >
 > yes i have fired my coil after i swithched to #4 welding cable for the
tank
 > and rf ground and  drove a 10 foot copper ground rod next to my shop  i
went
 > from 10 inch to about18 inches,yes rolled caps are a pain in the ass but
it
 > was a good learning experience, iwill order the geek caps in the next few
 > days,it will be interesting to see if there is any improvement over the
 > rolled caps, i have 2 more 12/30 nst's to add to the coil once the caps
 > arrive=:), i also want to iprove the wiring while i am at it...do you know
 > of any surplus or used electrical parts stores in vancouver, i am looking
 > for a couple of VARIACS. (BURNED out ones would actualy be preferable if
 > anyone has one or more:) they want toget rid of.) ???
 >
 > Lance
 >
 > ----- Original Message -----
 > From: "Dan Reinders" <danreind-at-shaw.ca>
 > To: "harry" <harry-at-prcn-dot-org>
 > Sent: May 27, 2003 10:17 PM
 > Subject: Re: BC coilers
 >
 >
 > > Hi Lance,
 > >
 > > For capacitors for an MMC check out:
 > > http://www.thegeekgroup-dot-org/mmc/
 > >
 > > They are, to my knowledge, the best deal on capacitors going at the
 > moment.
 > > Other caps may be used, but these have the bonus of having very good
dV/dt
 > > rates (i.e. higher current capacities).  Cost is reasonable, $3 US each
 > plus
 > > a little shipping.  Many have reported great improvements when going
from
 > > saltwater caps to MMC's.  Curiously I didn't, my spark length was about
 > the
 > > same despite the purported "lossy" nature of the salties.  Probably this
 > is
 > > due to other losses in my coil overwhelming the capacitor losses, but
 > that's
 > > just a theory at this point.
 > >
 > > Have you fired your coil yet, and if so what sort of sparkage are you
 > > getting?  I have read that chokes are no longer recommended, as have
been
 > > deemed to be harder on NST's than no safety circuit at all.  I had
thought
 > > about rolling my own capacitors (even bought the poly), but then decided
 > > that the cost and PITA factor (Pain in the ass) made MMC's the only
 > logical
 > > choice.
 > >
 > > Cheers,
 > >
 > > Dan
 > > ----- Original Message -----
 > > From: harry <harry-at-prcn-dot-org>
 > > To: Dan Reinders <danreind-at-shaw.ca>
 > > Sent: Tuesday, May 27, 2003 10:08 PM
 > > Subject: Re: BC coilers
 > >
 > >
 > > > Hello Dan
 > > >
 > > > My name is Lance Williams, I live in Powell River, I am 35 years old
and
 > I
 > > > am a supervisor for a Industrial kiln manufacturer.
 > > >
 > > > I am new to coiling (6 mths), and have built a 4" coil:
 > > >
 > > > -a 4" dryer duct toroid  -static spark gap with 2 MO fans (soon to be
 > > > modified for a vaccum motor)  -1/4" copper tube primary  -2 ferrite
 > chokes
 > > > made from TV yokes  -2 home made poly/alum rolled capacitors
 > > > 22uF   ----------2 allanson 12/30 nst's   -1/2" copper pipe with end
 > caps
 > > > for a safety gap.
 > > >
 > > > Planned upgrades are :
 > > >
 > > > -a terry filter (as it is somewhat difficult to obtain nst"s When you
 > live
 > > > in the middle of nowhere)    -an MMC   -adding 2 more 12/30's    -and
 > > making
 > > > a 6" dryer duct toroid   - I am also in the process of of obtaining
 > parts
 > > > for  a MOT powered 6" coil .
 > > >
 > > >
 > > > Lance
 > > >
 > > > p.s. could you tell me where you bought the caps for your MMC and how
 > much
 > > > they cost Can. $
 > > >
 > > >
 > >
 > >
 > >
 > >
 >