Curt, you are not doing your Math.
Right now I'm waiting on 504' of 24 Guage magnet wire to
come to wrap a piece of 3.5" pvc up to 40 inches with new wire nice and
clean.
3.5" Dia X 40" secondary will take 1619' of AWG 24. [504" of AWG 24 will
get you less than 14" length.]
Doug
On Sun, Feb 21, 2021 at 9:17 PM Douglas Johnson <doug379306@xxxxxxxxx>
wrote:
> Curt, These guys are being too nice,
> that is the worst pile of dangerous, cobbled up junk I have ever seen!
> The Tesla coil circuit is extremely simple, with yours I see wires,
> connectors, clips and I don't know what all, all over the place. Let's look
> at your "bucket cap." If that thing is any good, it alone could kill you,
> as it has no visible way to dissipate a charge . These guys know of which
> they speak, so pay attention and learn, instead of expounding on how
> safety minded you are. Put that whole mess in the dumpster, start from
> scratch, and build a Tesla Coil. You have a couple thousand experts, world
> wide, on this list to help you!
> Doug
>
> On Sun, Feb 21, 2021 at 8:08 PM Curt Wilson <3wisenconst@xxxxxxxxx> wrote:
>
>> I really appreciate the input. And the safety reminder. I don't mean to
>> make it sound glorified by any means more a reminisce of battle wounds
>> survived. I've been running around roofs and climbing trees with nothing
>> attached to my safety belt but a running chainsaw but since have become a
>> union carpenter in Boston then gone rogue again but I took advantage of
>> the
>> available certs, got Osha 10 and 30, fall protection, Ariel lift...and so
>> on so I know how to think ahead and be mindful of not only myself but my
>> surroundings and others aswell I pick and choose the chances I take and
>> occasionally get reminded that complacency with anything electrical is
>> unacceptable. Just like I check my footings twice climbing in and out of
>> the back of my truck these days nevermind up on a roof. Never forget the
>> main thing that stuck out to me from my Osha 30 class was the last day we
>> finished the course material and test with like 3 hours to spare and the
>> instructor started showing us you tube accident videos like the big blue
>> crane crash but the main one I remember was four Japanese or Chinese
>> painters at an industrial plant rolling what looked to be a 20 or 30 foot
>> high work platform one on each leg of it and didn't see the high voltage
>> lines they were about to roll it into on surveillance camera you saw arcs
>> and sparks from above the staging rolled a bit further as one painter
>> luckily fell off the other three went limp and dragged there feet as there
>> hands stayed Locked tight in place the smoke started appearing from
>> different parts of there bodies and one caught on fire the one that fell
>> off managed to get uo after a couole of minutes and trys to get away only
>> to come back and try to help the other guys and got electrocuted again and
>> managed to live again the other three passed. Anyone wanting a reality
>> check ill see if I can find the link and post it. You wouldn't need to
>> warn
>> further after watching that! I even installed surveillance cameras outside
>> my hobby shop so I can monitor the area where my earth grounds are driven
>> into the ground. (I have kids and take no chances of them getting hurt)
>> and my shops an 8.5 x 20 car trailer that's locked up tight when not in
>> use and I shut down all breakers and short all caps as an extra just
>> incase.
>> But back to the coil .it is definitely out of tune. I've be having a
>> hard
>> enough time getting anything to stay running long enough to be able to
>> tune
>> it. I did use recycled transformer magnet wire that also has multiple
>> pieces soldered together to get the recommended turns according to what I
>> could understand of the javatc Calc I was trying to use I know that alone
>> could cause it not to tune properly but I've unwound multiple
>> transformers
>> and wound three different size coils one on 4.5inch outside diam. Pvc
>> wound
>> 19" high and the other one I bounce back and forth too is 2 in outside
>> diam. PVC wound 23" high. And I have 2 primaries as well one is 1/8 "
>> x9/16" solid copper ribbon layer in 7 coils with 1" spacing on them and
>> the
>> other is copper 1/4" tubing thay is similar. Im not sure if I used the
>> autotune in Java correctly or if I understood it correctly. But everytime
>> I started getting it all worked out I'd fry what ever transformer I was
>> using and have to start all the calculations over again with the new
>> transformers. Right now I'm waiting on 504' of 24 Guage magnet wire to
>> come to wrap a piece of 3.5" pvc up to 40 inches with new wire nice and
>> clean
>>
>> On Sun, Feb 21, 2021, 7:12 PM Chris Reeland <chrisreeland@xxxxxxxxx>
>> wrote:
>>
>> > Hello Curt,
>> >
>> > First, I want to say, (which you might know is coming) from what you
>> have
>> > said so far, is "Sir, you are going to run out of lives eventually and
>> > leave your little angel". You must respect voltages at ALL levels. Again
>> > ALL levels. This is not about "tickles and bites". Please think and
>> learn.
>> > Even 120VAC in right conditions will take you OUT.
>> >
>> > Please also never touch output of spark gap TC's. Even with objects you
>> > think are good insulators, no matter how long.
>> >
>> > That said, I am not much of a spark gap TC fella, especially rotary gap
>> > type. Looks like you have an asynchronous type, which from what I
>> > understand, needs to have a certain "sweet spot" speed to be optimum.
>> >
>> > As Jim said, yes will not be able to turn up variac much with x-ray
>> > transformer.
>> >
>> > Yes, your x-ray transformer is rectified and filtered DC.
>> >
>> > Did you follow any kind of plans or formulas for your primary and
>> > secondary? Or did you just coble from available stuff around and just
>> put
>> > together with no regard to what is required? What is the capacitance of
>> > your bucket cap? What is the capacitor actually in there? Need all
>> kinds of
>> > details here. This is just a few of many asked here right now.
>> >
>> > I would say everything is greatly out of tune in several areas.
>> >
>> > Okay, maybe some others will chime in here more knowledgeable on RSGTC's
>> > than me. As I am mostly a vacuum tube coil guy so far.
>> >
>> > Chris Reeland
>> > Ladd Illinois USA
>> >
>> >
>> > Sent from my Samsung Galaxy Tab® S
>> >
>> > On Sun, Feb 21, 2021, 4:52 PM Curt Wilson <3wisenconst@xxxxxxxxx>
>> wrote:
>> >
>> > > I beleive it is an 80kv xray transformer. I'm not positive if it has
>> > > rectifiers or not I beleive it probably does. I will add a link to
>> photos
>> > > of the inside of the transformer. It did not come with the case or the
>> > high
>> > > voltage cables which come to find are quite expensive So i had to
>> find a
>> > > case that would work, which didn't and started leaking oil all over my
>> > > hobby shop. So I pulled it out and lined it with rubber roofing and
>> > > refilled it and temporary am using bare solid 6 Guage copper wire
>> stuck
>> > in
>> > > the recieving plug to make my connection too.i know it's no where near
>> > any
>> > > kind of safety standard yet but it's in maternity things up a and
>> > > upgrading as money allows in the mean time I've been tinkering for
>> over a
>> > > month and can light a florescent 48" tube up from 3' away just from my
>> > > primary and the only spark I've gotten from my previous design was
>> about
>> > an
>> > > inch coaxed from the toroidal by me with a pair of insulated
>> electricians
>> > > pliers that was a one and done mistake. The 5000volt insulation
>> rating on
>> > > the pliers was no match even for my not quite there yet tesla. I'm a
>> > > builder and welder by trade and so have been wacked with 120 all the
>> time
>> > > 250 from the live side of my switch on my tombstone 200 amp stic
>> welder
>> > and
>> > > 480 3 phase messing around in the control panel of my 4 head woodmizer
>> > > resaw. 120 and 240 tickle 480 instantly melted the screwdriver handle
>> to
>> > my
>> > > hand and shot the rest of the screwdriver about 8 feet behind me and
>> > stuck
>> > > it Into the cinderblock wall behind be which gave me a new
>> appreciation
>> > for
>> > > the term "tag and lock out" and I even had a bare hv feed from to
>> mots in
>> > > series jump from the wood I was fractaling and land right on my arm
>> and
>> > > none of them compared to the bite of that coil through the pliers! I'm
>> > well
>> > > aware of the dangers of hv and I also have more lives than the pets
>> from
>> > > the movie pet cemetery and acknowledge my guardian angel with a
>> tattoo of
>> > > her on my arm! But I apologize im rambling. In some of the pictures I
>> > show
>> > > some of my available electronics items I have at my disposal. I have
>> > huge
>> > > plastic totes of old transformers and chokes resistors all kinds of
>> fuses
>> > > amd diodes, capacitors, wire wound resistors and gateways and heat
>> sinks
>> > > that friends have donated to my fascination and curiosity of
>> electricity
>> > > and would be more than happy to share with anyone who may need any of
>> the
>> > > items I have. All I ask is that you pay your own shipping. I have more
>> > than
>> > > I can even imagine using.
>> > > Here's the link to my photos, lemme know if there's any issues opening
>> > > them. Amd thank you all again for the help with this build .
>> > > https://photos.app.goo.gl/h4Mr2zVLm2yzxaKy9
>> > >
>> > > On Sun, Feb 21, 2021, 3:29 PM Lux, Jim <jim@xxxxxxxxxxxxx> wrote:
>> > >
>> > > > On 2/20/21 3:50 PM, Curt Wilson wrote:
>> > > > > My names Curt and I've been trying to get a tesla coil up and
>> running
>> > > > for a
>> > > > > while now. I've used multiple power supplys such as four mots
>> wired
>> > in
>> > > > > series parralell with a center tap ground but they did not last
>> > > probably
>> > > > > due to being used for fractal wood burning prior. I have tried
>> NST's
>> > > but
>> > > > > they had the gcfi on them and only worked for the first few
>> minutes.
>> > So
>> > > > now
>> > > > > I've moved onto a cathode/anode 80 kva x-ray transformer that
>> feeds
>> > > > through
>> > > > > a bucket capacitor and into a bench grinder with a 6inch plastic
>> fan
>> > > > wheel
>> > > > > that I wove solid copper wire through four of the fins and have a
>> oil
>> > > > > burner point on with side for the pick ups. My primary coil is
>> 9/16"
>> > x
>> > > > 1/8"
>> > > > > solid copper ribbon with 1"spacing between coils and my current
>> > > secondary
>> > > > > is 4.5" pvc with two recycled 34 guage magnet wire soldered
>> together
>> > > and
>> > > > my
>> > > > > top load is two old chevy hubcaps hot glued together. I'm running
>> a
>> > > 30amp
>> > > > > variac 125v ac to regulated 125v ac and I can't get past about 30v
>> > with
>> > > > out
>> > > > > the fuse blowing. Just when the rotary gap starts to fire the fuse
>> > > blows.
>> > > > > I've tried a mot with secondary shorted between the transformer
>> and
>> > the
>> > > > > variac but it didn't seem to make a difference and I've tried a250
>> > watt
>> > > > > 15ohm resistor first where the mot was then tried it between the
>> > > > > transformer and the primary. Both places it just heated up and
>> would
>> > > not
>> > > > > allow any spark at the gap. Any help with the wiring on the
>> > transformer
>> > > > or
>> > > > > variac or suggestions would be greatly appreciated! Thanks in
>> > advance.
>> > > > > https://photos.app.goo.gl/nPS9fMg36375yAXi8
>> > > > > _______________________________________________
>> > > > > Tesla mailing list
>> > > > > Tesla@xxxxxxxxxxxxxxxxxx
>> > > > > https://www.pupman.com/mailman/listinfo/tesla
>> > > > >
>> > > >
>> > > > What is your X-ray transformer output voltage? Most Xray
>> transformers
>> > > > have *very* high output voltage compared to what's practical for
>> most
>> > > > home built TCs.
>> > > >
>> > > > Xray - 75-120kV isn't unusual. Neon Sign Transformer (NST) or Pole
>> > > > Transformer are 12-15 kV.
>> > > >
>> > > >
>> > > > So you should be looking at feeding your Xray with around 10-20VAC.
>> > > >
>> > > > A real issue is that Xray transformers don't have any current
>> limiting,
>> > > > so you'll need a ballast to limit the current (just like pole-pig
>> > > designs).
>> > > >
>> > > > Does your Xray transformer have rectifiers?
>> > > >
>> > > >
>> > > > _______________________________________________
>> > > > Tesla mailing list
>> > > > Tesla@xxxxxxxxxxxxxxxxxx
>> > > > https://www.pupman.com/mailman/listinfo/tesla
>> > > >
>> > > _______________________________________________
>> > > Tesla mailing list
>> > > Tesla@xxxxxxxxxxxxxxxxxx
>> > > https://www.pupman.com/mailman/listinfo/tesla
>> > >
>> > _______________________________________________
>> > Tesla mailing list
>> > Tesla@xxxxxxxxxxxxxxxxxx
>> > https://www.pupman.com/mailman/listinfo/tesla
>> >
>> _______________________________________________
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>>
>
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