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4hv.org :: Forums :: Tesla Coils
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Tesla Coil Help!! Got only 3 days left to complete my project, plsss help

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ElectricalEngg.
Sat Apr 25 2009, 10:41AM
ElectricalEngg. Registered Member #1946 Joined: Sat Jan 31 2009, 11:37AM
Location: India
Posts: 43
dudes final and awesome news, I managed to get the sparks too, not very long just about 2 to 3 inches but I found the mistakes why also

and I won gold in Tech-Fest

hehe

Thanks to you guys :D
pics coming in a couple hours

Thank you again guys :D
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coillah
Sat Apr 25 2009, 05:39PM
coillah Registered Member #1517 Joined: Wed Jun 04 2008, 06:55AM
Location: Chico CA
Posts: 304
Won gold huh? That's awesome kash!

post pics so we can see the coil please!
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Arcstarter
Sat Apr 25 2009, 09:18PM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Gold? Nice! I see tesla coils ARE good for somethign :).

The length of the secondary should not makes your sparks tiny. I am sure with it you could get at least 6 inches. The ratio is quite different than you want though. My 4.5 inch is about 1:5.33, and it works fine.

The length i like to go for with a 2 inch coil is 11 inches, because it smply looks right. Also, i would use 28 gauge double build wire that is thicker insulation and still gets about 1000 turns while somehow looking 'how it should'. That is one reason my 4.5 inch coil has a slightly high (or low, not sure what it would be called) aspect ratio, that and to give clearance from the primary for longer sparks without primary strikes!
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ElectricalEngg.
Wed Apr 29 2009, 06:39PM
ElectricalEngg. Registered Member #1946 Joined: Sat Jan 31 2009, 11:37AM
Location: India
Posts: 43
You had 1:5
but I had 1:13 LOL

people on this thread said that aspect ratio wil affect the output :)

and I won gold just because people there didnt knew much about tesla coil, and I told them one huge lie

I said I reduced the efficience so that sparks dont come out directly as I had to display it along with other people's electronic models. xD

and the best par was that they believed it :D

but I am gonna improve it and well soon gonna make that lie change to truth. :P

:D

I posted the pics here :)

Link2

mine is on the 11th page :)
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Plasma Lover
Wed Apr 29 2009, 07:45PM
Plasma Lover Registered Member #1911 Joined: Mon Jan 05 2009, 06:30PM
Location: Salem, Oregon, USA
Posts: 165
For the size of your coil, your top load is far too large. I recommend making a smaller one and trying that with a similar setup to see if output improves.
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hotcrazyfruit
Wed Apr 29 2009, 09:30PM
hotcrazyfruit banned on 5/26/2009
Registered Member #1877 Joined: Mon Dec 22 2008, 02:03AM
Location:
Posts: 147
coillah wrote ...

not to thread jack or anything guys, but this has to be the nicest I have ever seen any forum be to a newb.

on the internet, this is simply unheard of. call me jaded, but that's just what I have seen...

you're one lucky dude kashish
your totally right, i think of it as being fascist, but a prime example would be youtube. say one thing someone doesn't like and its BANG YOU SUCK.
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teravolt
Thu Apr 30 2009, 02:31AM
teravolt Registered Member #195 Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
don't listen to them! do you plan to make a larger one with a wider diamiter with what you have lerned
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ElectricalEngg.
Thu Apr 30 2009, 05:19AM
ElectricalEngg. Registered Member #1946 Joined: Sat Jan 31 2009, 11:37AM
Location: India
Posts: 43
Plasma Lover wrote ...
For the size of your coil, your top load is far too large. I recommend making a smaller one and trying that with a similar setup to see if output improves.

teravolt wrote ...
do you plan to make a larger one with a wider diamiter with what you have lerned

Yes surely would be doing that

I am gonna increase secondary dia and get a ratio of like1:4 or 1:5
then reduce the torroidal size acc to that
and if needed, then increase no. of primary turns :)

gonna do that all soon ^^

Thanks for guiding me guys, you guys are the best :D
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Plasma Lover
Thu Apr 30 2009, 02:44PM
Plasma Lover Registered Member #1911 Joined: Mon Jan 05 2009, 06:30PM
Location: Salem, Oregon, USA
Posts: 165
kashish0711 wrote ...

Thanks for guiding me guys, you guys are the best :D

Well, it's always nice to see somebody's coil come together, whether it's as beautiful as Dr. Spark's coils, or as horrible as my own (the second reason I haven't posted pictures - first reason is that I have no camera).

We've all got to start somewhere and when your first coil actually works, when you're trying to build a Tesla coil, it's a miracle.

You've got a nice looking coil, and I'm sure it will continue to get better and better.

Eventually, you'll probably be able to source a nice transformer, possibly a potential transformer, to replace that weak little NST you're using. 6/30 isn't much, but I've gotten six inch streamers off of a 3KV 15mA NST (looks like a bug-zapper transformer, but has a luminous tube transformer sticker on it; looks like it's made to light up the tittle on a letter 'i', and that's it) and a 600 turn secondary. I'll post pictures if my friend lets me borrow his camera.

Anyways, I'm posting this to congratulate you, not brag. ;)

I look forward to seeing what you have to offer in the future.


Christopher Karr
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ElectricalEngg.
Thu Apr 30 2009, 04:52PM
ElectricalEngg. Registered Member #1946 Joined: Sat Jan 31 2009, 11:37AM
Location: India
Posts: 43
Plasma Lover wrote ...

kashish0711 wrote ...
Thanks for guiding me guys, you guys are the best :D
Well, it's always nice to see somebody's coil come together, whether it's as beautiful as Dr. Spark's coils, or as horrible as my own (the second reason I haven't posted pictures - first reason is that I have no camera).

We've all got to start somewhere and when your first coil actually works, when you're trying to build a Tesla coil, it's a miracle.

You've got a nice looking coil, and I'm sure it will continue to get better and better.

Eventually, you'll probably be able to source a nice transformer, possibly a potential transformer, to replace that weak little NST you're using. 6/30 isn't much, but I've gotten six inch streamers off of a 3KV 15mA NST (looks like a bug-zapper transformer, but has a luminous tube transformer sticker on it; looks like it's made to light up the tittle on a letter 'i', and that's it) and a 600 turn secondary. I'll post pictures if my friend lets me borrow his camera.

Anyways, I'm posting this to congratulate you, not brag. ;)

I look forward to seeing what you have to offer in the future.


Christopher Karr


Yeah sure, I am gonna finish my college in around 1 month, then gonna get a job, then I will be independent financially, otherwise I had to borrow money from parents.

I am gonna buy a 12000 volts 1A t/r, which costs abt 10000 rs (200$)

AND THEN GO EXPERIMENTING :)

Idk abt anything else, but one promise that you will see at least one new properly and efficiently working tesla coil from me within next 3 to 4 months :)
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