Re: newbie questions

["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>

Hello Chris

Perhaps what I should have said is I have a legnth of 12.5" pvc sewer pipe
and also about 6 ea. of 12/30 & 9/30 NST's  (all Allansons) along with a
selection of MOT's (about 20...... all different  :(

Asumming I wish to reach 6' sparks would I be wasting my time using the
nst's , The Brit's and the Ausies seem to be doing very well with MOT's and
I may give this a try when I have 4 of a kind.

Due to the exchange rate it is expensive to buy and ship parts to Canada
(usualy resulting in additional costs of about 75%) and most E-bay vendors
do not want to ship outside the US.

I will however be purchasing some geek caps as they seem to be quite robust
and use about 100th the space.

Funds permitting I hope to puchase one of the 16k/200 NST's  in the winter.

Lance

P.S.
I was given a couple dozen older style CDE capacitors (still in box)all are
similar to part # DD0694.5  does anyone know if these can be used in any
sort of tesla coil projects ?

Thanx



----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: July 23, 2003 7:36 AM
Subject: Re: newbie questions


 > Original poster: "Chris Roberts by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <quezacotl_14000000000000-at-yahoo-dot-com>
 >
 > Hi Lance,
 > Well, in response to the large secondary question, there is no limit to
how
 > little power you need to put through a certain size of coil. The main
 > reason that you don't see little NSTs  powering a gargantuan coil is the
 > fact that the sparks would be proportionally tiny
 > and nobody wants little 2 foot sparks coming off of their 15 foot tall
 > coil. =D That and the fact that such a large coil is much more cumbersome
 > than a smaller one. Unfortunately, it dosen't work the other way around,
so
 > no hooking your pole transformers up to those little 1 inch secondarys. =D
 >
 >
 > Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: "harry by way of Terry Fritz "
 >
 > Hi> -3" dryer duct toroid 16" dia. oa. a bit small but the kids prefer it
over
 > the 4"(lots more sparks :)
 > -14 turns 1/4" copper tube primary spaced 3/8" apart 45deg. inverted
 > conical 8" id. 19" od.
 > -4.25" pvc secondary form 30" long with 25" winding of 24Ga magnet wire.
 > -powered with 2 12/30 nst's (soon to be 4 :)

 >
 > My name is Lance Williams , I am 36 yrs. old and I live in British
Columbia
 > Canada , I have a basic understanding of electricity and electronics,I
have
 > been lurking on the list since Xmas, in that time i have built a coil with
 > the following specs:
 >
 > -static gap 1"copper tube 6" long 11pcs. for 10 gaps at .02" each and 2
MOV
 > fans for quenching.
 > -2 homemade rolled poly caps .022 uf ea. in series and an ESR of 19 and
18.
 > -#4G! a welding cable for a ground wire to a 10' copper clad ground rod.
 >
 > With this setup i am achieving 26" continuous spark w/o breakout point and
 > 32" w/ breakout points.
 >
 >
 > Now for the questions:
 >
 > -Can the ESR of the caps be lowered by wrapping it tighter and would there
 > be any improvement in performance of the coil ?
 >
 > -What does "zero crossing" mean ?
 >
 > -Out of curiosity I modified a couple of old washing machine induction
 > motors (1725 rpm) to run synchronous, the second one runs a little hotter
 > but seems to be starting and locking into sync ok but the first one has
 > trouble starting and when it does it can run in either direction and gets
 > very hot .Neither motor has cap. start ,just a start winding.I removed
 > about 1" from the rotors on both motors (4 flats).Does anyone know if
there
 > is a way to save this motor or is it junk ?
 >
 > - I have some 12.5" Dia. pvc sewer pipe that I could use for a secondary
 > coil could some! one tell me what the minimum power requirements would
have
 > to be for such a coil ?
 >
 > THANK YOU to all who contribute to this list it has been very educational
 > for me and has sparked ( pun intended) a renewed interest in electricity
 > for me .
 >
 > Lance
 >
 >
 >
 >
 > -Chris
 >
 >