Re: first post (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Thu, 16 Aug 2007 08:08:32 -0700 (GMT-07:00)
From: penny831@xxxxxxxxxxxxx
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: first post (fwd)

What does the Doctor recommend for a 15/120 running through a SRSG at 120 or 240 bps?

Tony

-----Original Message-----
>From: Tesla list <tesla@xxxxxxxxxx>
>Sent: Aug 16, 2007 5:10 AM
>To: tesla@xxxxxxxxxx
>Subject: Re: first post (fwd)
>
>
>---------- Forwarded message ----------
>Date: Wed, 15 Aug 2007 22:41:26 -0500
>From: resonance <resonance@xxxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: first post (fwd)
>
>
>
>You need 2.5 x Erms if you want them to last.   7 won't cut it --- the 
>corona inside the cap will eat it up.
>
>9 kV x 22.5 kV     22.5 kV / 2 kV / cap  =   12 per string.
>
>
>Resonance Research Corp.
>www.resonanceresearch.com
>
>
>----- Original Message ----- 
>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: <tesla@xxxxxxxxxx>
>Sent: Wednesday, August 15, 2007 12:59 PM
>Subject: Re: first post (fwd)
>
>
>>
>> ---------- Forwarded message ----------
>> Date: Wed, 15 Aug 2007 13:00:10 -0500
>> From: Crispy <crispy@xxxxxxxxxxx>
>> To: Tesla list <tesla@xxxxxxxxxx>
>> Subject: Re: first post (fwd)
>>
>> Hmm, by my calculations, you'd only need 7 per string.  The caps are
>> rated at 150nF, 2kV each, if I recall.  9000Vrms is about 12730V peak.
>> Divided by 2000V per cap and rounded up comes to 7 caps per string.
>> This alone is more than the 15nF you want.  If you want exactly 15nF,
>> you can use one string of 10, and have a healthy voltage margin as well.
>> On ebay, the ebay store TeslaStuff sells lots of 12 of these caps for
>> under $50.
>>
>> Hope this helps,
>> Chris
>>
>> On Wed, 2007-08-15 at 11:05 -0600, Tesla list wrote:
>>> ---------- Forwarded message ----------
>>> Date: Wed, 15 Aug 2007 12:07:09 -0500
>>> From: Terri Neeley <neeley_111@xxxxxxx>
>>> To: tesla@xxxxxxxxxx
>>> Subject: Re: first post (fwd)
>>>
>>>
>>> Exactly what Mr. Lux said.  Many people have used these transformers with
>>> success and I thought it could be a cheaper alternative than stacking
>>> nst's.  The transformers I have are 4500v 450ma btw.  So if you use Jim
>>> Lux's config you essentially split the current between the two and double
>>> the voltage.  I will be using a synchronous rotary gap.  My question is
>>> are there really any alternatives to CD942's?  What about wima fkp1's?
>>> They seem to be much cheaper considering the cd's are over 3 bucks a
>>> piece and I would need 6 strings of 18 of the .015mF for this coil.  I'm
>>> just very new to this and I really just want a cap or mmc that will be as
>>> reliable as reasonably expected to be.  Any really good alternatives
>>> besides the CD's?  There gonna set me back at least 350$ for them.
>>>
>>> Garry Neeley
>>>
>>> ________________________________________________________________________________
>>>
>>>       From:  "Tesla list" <tesla@xxxxxxxxxx>
>>>       To:  tesla@xxxxxxxxxx
>>>       Subject:  Re: first post (fwd)
>>>       Date:  Wed, 15 Aug 2007 10:23:54 -0600 (MDT)
>>>       >
>>>       >---------- Forwarded message ----------
>>>       >Date: Wed, 15 Aug 2007 09:16:18 -0700
>>>       >From: Jim Lux <jimlux@xxxxxxxxxxxxx>
>>>       >To: Tesla list <tesla@xxxxxxxxxx>, tesla@xxxxxxxxxx
>>>       >Subject: Re: first post (fwd)
>>>       >
>>>       >At 08:38 AM 8/15/2007, Tesla list wrote:
>>>       >
>>>       > >---------- Forwarded message ----------
>>>       > >Date: Wed, 15 Aug 2007 08:29:08 -0700
>>>       > >From: huil888 <huil888@xxxxxxxxxxxx>
>>>       > >To: Tesla list <tesla@xxxxxxxxxx>
>>>       > >Subject: Re: first post (fwd)
>>>       > >
>>>       > >Terri -
>>>       > >
>>>       > >First question is about your HV power supply transformers.
>>>       These are
>>>       > >nominally rated at 4500 volts RMS, 400ma. I assume that
>>>       you intend to
>>>       > >connect them in series to obtain 9KV RMS AC output?
>>>       Peak-to-peak voltage
>>>       > >will be about 12.7KV.  Are you sure that the transformer
>>>       insulation will
>>>       > >withstand this? One good flashover at this much current
>>>       may destroy the
>>>       > >transformers.
>>>       > >
>>>       > >How will you limit secondary the current to 225ma?
>>>       >
>>>       >I think that the plan is to cascade the two transformers in
>>>       series,
>>>       >using the 600V tertiary winding, so the "high" transformer's
>>>       core is
>>>       >floated at 4500V.
>>>       >
>>>       >These things have a fair amount of leakage inductance, so
>>>       the output
>>>       >current is limited.
>>>       >
>>>       >
>>>       >
>>>       >I built a similar cascade, using 4 transformers: two
>>>       cascades, with a
>>>       >center ground, and it's in many respects like a giant NST.
>>>       >
>>>       >
>>>       >
>>>       >
>>>
>>>
>>> ________________________________________________________________________________
>>>
>>> More photos, more messages, more storageget 2GB with Windows Live
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>>>
>>
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>> 
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