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Michalis.Biochem

Fri Oct 22 2010, 07:34AM

Registered Member #3340 Joined: Wed Oct 20 2010, 07:28PM
Location:
Posts: 69

Well, i have manage to salvage some transformer but i don't know if they are suitable for a Tesla Coil. One is from an wall wart(red), the other is from a battery charger(blue-yellow) and the third comes from an CFL driver circuit. I want my Tesla Coil to be battery charged.
I have included pics of my transformers.
Also, i would like to know how to build an inverter transformer circuit usings these transformers.

P.S the red a 4-pin, the yellow-blue is a 5-pin and the CFL one is a 4-pin.

I also have some disposable camera circuit ones laying around.

genious 7

Fri Oct 22 2010, 09:13PM

Registered Member #2887 Joined: Sat May 29 2010, 11:10PM
Location: Panama City, Panama
Posts: 107

Probably not.
All those transformers generate a low voltage; (relatively). Due to this, there is not enough voltage for it to power a spark gap Tesla coil, which is the easiest one to make. Try to get a neon sign transformer; it is the easiest way to make one.

Edit: For it to be battery powered, it would need to be a car battery, you would need an inverter, etc. If this is your first Tesla coil, avoid battery power. If it is your first time with high voltage, you could try starting with a Flyback. Its cheaper, will teach you about high voltage and can easily be done with a 12 v car battery. (If you go for flyback, avoid 2n3055 and go for 555 or ZVS; you'll know what I mean when you search about it.

PS. English is my second language, please forgive me if something is not clear

Michalis.Biochem

Sat Oct 23 2010, 09:34AM

Registered Member #3340 Joined: Wed Oct 20 2010, 07:28PM
Location:
Posts: 69

Thank you very much for replying. : )
I am after this http://4hv.org/e107_plugins/forum/forum_viewtopic.php?36853.post tesla coil. It was powered by 2 AAA batteries and it put out a respactable discharge.
I wouldn't like to make my tesla coil non-battery powered since there would be greater dangers involved in such a project.

So what can be done with the transformers shown above or some flash board circuit transformers? : )

P.S english is not my native too :P don't worry :)

genious 7

Sat Oct 23 2010, 01:29PM

Registered Member #2887 Joined: Sat May 29 2010, 11:10PM
Location: Panama City, Panama
Posts: 107

With disposable cameras you COULD make one like that. Anyways, just for you to know, even that Tesla coil has its dangers. The high voltage capacitor can store a lethal charge after it is turned off (A capacitor stores charge, and could retain it for some time. The capacitor used is small, but at high voltages, it becomes dangerous. There is danger in the primary at even that power level.)

You could try making that one, but if this is your first high voltage project, try easier projects first to learn how high voltage behaves.

So what can be done with the transformers shown above or some flash board circuit transformers?

Regarding high voltage, the first transformers are low voltage types. The camera circuits could be used to charge capacitors, but I recommend you to avoid handling high voltage capacitors for now. If you want a simple high voltage project, search for "flyback 555 driver" in Google. It doesn't throw streamers like Tesla coils, but an arc (between two cables) Easy to see in daylight though.

PS. Just out of curiosities sake, is your first language Spanish?

Michalis.Biochem

Sat Oct 23 2010, 01:53PM

Registered Member #3340 Joined: Wed Oct 20 2010, 07:28PM
Location:
Posts: 69

Currently i can't get my hands on a flyback transformer. That's why i decided to start with this one.

I have managed to make the CW voltage multiplier from 10x 1nF@2000V caps and 10x UF4007diodes

I have also bought some 2.2nF@2000V caps for my cap bank.

Anyway, my main problem is that i dont know how to put together the camera transformers and the CW voltage multiplier. If you could lend me a hand, please do so.

PS my first language is Greek :P

genious 7

Sat Oct 23 2010, 07:12PM

Registered Member #2887 Joined: Sat May 29 2010, 11:10PM
Location: Panama City, Panama
Posts: 107

Could you please take a photo of your camera circuit for a more precise help?

Meanwhile, I can tell you general info but nothing too specific.

The camera charger outputs DC by using a diode. For a CW to work, it needs AC. This means that, for the circuit to work, you must connect the multiplier to the camera circuit before the diode. This way, the multiplier will receive AC and will work.
Maybe a more experienced member could tell you more, but a photo of the camera charger would make instructions easier.

Michalis.Biochem

Sat Oct 23 2010, 07:20PM

Registered Member #3340 Joined: Wed Oct 20 2010, 07:28PM
Location:
Posts: 69

I will take some photos of my camera circuits ASAP.

What if i desolder the diode and put a brigde in its place?

btw here are some pics of the circuit as it is now

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