Re: NST frequency

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Darin Willson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <darinwil-at-execpc-dot-com>

Thanks for the info, I have built an Cockroft it is 3 stages. I dont know
how much it puts out but If I go for 4 stages 
the dead short protection for the inverter kicks in when I discharge it and
I have to disconnect the power for 10secs
before it will reset. Any one know where I can find equations for a
Cockroft so I can figure out what I am getting so far?

8/1/2001 9:05:37 AM, "Tesla list" <tesla-at-pupman-dot-com> wrote:

>Original poster: "Kevin Ottalini by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <ottalini-at-mindspring-dot-com>
>
>Darin:
>        I would guess that this is a high-frequency (20khz to 80Khz)
>inverter design,
>and you probably don't want to de-encapsulate it.
>
>Knowing the frequency won't help since you won't be able to sync it up.
>Your
>only option is to rectify the output and build a DC Tesla coil.  If the
>output
>is not sufficient in voltage, then you should be able to double or triple
>the voltage efficiently, but again to DC.
>
>I assume this was originally from a car neon sign or similar ...
>
>For a basic circuit, you can look at my Marx generator schematic that
>uses a DC to AC to DC to DC (whew) scheme.  The inverter is probably
>similar to yours, and all you need is the Cockroft.  NTE sells doublers
>and triplers for TV sets that might be able to handle the AC and produce
>up to 30kv DC if you don't want to build one.
>
>http://www.mindspring-dot-com/~ottalini/
>
>You can also look at the files on the FTP site for info on building DC
>coils.
>
>Good luck,
>        Kevin
>
>----- Original Message -----
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: <tesla-at-pupman-dot-com>
>Sent: Tuesday, July 31, 2001 6:20 PM
>Subject: NST frequency
>
>
>> Original poster: "Darin Willson by way of Terry Fritz
><twftesla-at-qwest-dot-net>" <darinwil-at-execpc-dot-com>
>>
>> Is there any way of easily finding out the frequency of my NST?
>> It is a DC to AC  NST and I dont have any meters to determine the
>> frequency. Also the transistors and other components are covered with
>> HV epoxy so I cannot read any of the values. I have tried to remove the
>> epoxy but it is very tuff and the acetone started eating wires. any ideas?
>> Id like to make a micro-tesla coil just to say i did it but the frequency
>of
>> this transformer is holding me back. Any help would be great.
>>
>> Thanks,
>>
>> Darin
>>
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