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So I got a microwave for 5$...






USAbro said:
Yes they are dangerous. Also, neon transformers are. So are cars and heat guns if the user doesn't understand the dangers.
So unless you understand the dangers and are knowledgeable about HV, don't open it up, but it you do, have fun and be safe.
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He's saying that mots are rated for THOUSANDS of watts. neon sign transformers aren't. Most are less than half that wattage and the big 60ma 15kv ones are pricey and still only get 900w.

A mot is not built with safety in mind like nsts.

Too much power.
 
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USAbro said:
And I guess flybacks are on the less lethal end? 5-10ma.
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That depends on the input. But generally, if it looks dangerous then it probably is. :D

A flyback can put out almost as much as it is supplied with. You just need to change out your components. The irfp250s are good but with more power you need to switch to something like the 260s. Everything else has to be changed too.
 
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upaa27 said:
That depends on the input. But generally, if it looks dangerous then it probably is. :D

A flyback can put out almost as much as it is supplied with. You just need to change out your components. The irfp250s are good but with more power you need to switch to something like the 260s. Everything else has to be changed too.
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Haha, that's if your using a transistor driver. I'm using a ballast!:cryyy:
 
Well when you push fly backs to near 1Kw they tend to output a fair amount of current or in the case when I ran 2 in series , very high voltage .
 
How much current do you think you might get from a 14 watt ballast? I'm guess not much, and the arc is only 1.5cm so not much voltage either. Maybe 8kv?
 
USAbro said:
How much current do you think you might get from a 14 watt ballast? I'm guess not much, and the arc is only 1.5cm so not much voltage either. Maybe 8kv?
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Is that a rating for a resistive ballast? If so that wattage rating has nothing to do with power out. It is just saying how much it wattage it can dissipate before you need to upgrade.

As for voltage it is impossible to determine but 1.5 cm is more than 8kv with a rounded surface
 
It's a 14 watt cfl bulb. Sorry if I didn't make that clear, the ballast is designed for a 14watt tube.
 
USAbro said:
It's a 14 watt cfl bulb. Sorry if I didn't make that clear, the ballast is designed for a 14watt tube.
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There should be a rating on your ballast for current. I am still not sure what you are asking but from looking around it seems you want to build a tesla coil.

A cfl ballast won't work very well for a coil from what I have heard. If you say it's 14 watts especially.

Why don't you just use an nst? Much better to work with.

From the above posts I was assuming that you were referring to a flyback driver with hundreds of watts going in not a 14 w cfl ballast
 
I am powering a cfl lamp ballast with mains (120v). That powers the flyback at high frequency and the flyback powers the TC. Which is 14inch tall around a 2 inch pvc pipe. 10 gauge wire primary.
 
USAbro said:
I am powering a cfl lamp ballast with mains (120v). That powers the flyback at high frequency and the flyback powers the TC. Which is 14inch tall around a 2 inch pvc pipe. 10 gauge wire primary.
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Not to sound rude but that doesn't tell me anything. All cfls use high frequency and almost all use mains. A flyback uses a ferrite core because it is made for high frequency.

You need to know he voltage, current and frequency for the tank cap equation.

People use transitors and zvs because you can actually get something out of it.

Even so nsts are still better for coils.

We can move this to another thread as I don't want to be threadjacking
 
Start a new thread if you wish.

I'm just saying the ballast is designed to power a 14 watt tube.
Is an osilloscope needed to tune the coils or do any of this work? Can all this be done simply with a multi meter, a capacitance meter, and flyback, and some wire and capacitors. Or is special equipment needed?
 
USAbro said:
Start a new thread if you wish.

I'm just saying the ballast is designed to power a 14 watt tube.
Is an osilloscope needed to tune the coils or do any of this work? Can all this be done simply with a multi meter, a capacitance meter, and flyback, and some wire and capacitors. Or is special equipment needed?
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Get an nst.

Do V/I=Z. Then do 10^6/Z*frequency*6.2832

That will give you the required tank capacitance in uf

An oscilloscope would not be needed.
 
Okay, I was recently offered an NST by a member here, but don't have enough money at the time to by much at all.
 
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