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'High Voltage Power Transformers'
1999\01\06@122504 by Rich Graziano

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<DIV><FONT color=#000000 size=2>I am looking for a commercial source for high
voltage transformers with a secondary output voltage of 1500 volts and a
secondary current of 200mA into a 10k load.&nbsp; The primary voltage could be
120 volts and the operating frequency can be 60Hz or any other specific
frequency above that (less than 20KHz). </FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>I want an off-the shelf design, not a
special.&nbsp; I have not had much luck locating a manufacturer of high voltage
transformers having outputs grearer than 220 V.&nbsp; </FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>Any help would be appreciated.</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>Richard</FONT></DIV></BODY></HTML>

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1999\01\06@131010 by Eisermann, Phil

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> I am looking for a commercial source for high voltage transformers
> with a secondary output voltage of 1500 volts and a secondary current
> of 200mA into a 10k load.Ê The primary voltage could be 120 volts and
> the operating frequency can be 60Hz or any other specific frequency
> above that (less than 20KHz).
> Ê
> I want an off-the shelf design, not a special.Ê I have not had much
> luck locating a manufacturer of high voltage transformers having
> outputs grearer than 220 V.Ê
> Ê
       i don't know if they have this as an off-the-shelf part or not,
but
       you might want to try lenco electric. i've recently had them do
two
       custom transformers, and was quite pleased with time and
quality.

       Phone: (815)344-2900 (Illinois)
       email: spam_OUTlenco-eTakeThisOuTspamix.netcom.com

1999\01\06@155609 by Thomas McGahee

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Rich,
Since E=I*R, 200ma into a 10K load would result in a voltage of 2,000.
You can not get 2,000 volts from a 1,500 volt transformer (assuming
of course that both values are given in the same units, such as AC
RMS volts)

Try looking for manufacturers of what are sometimes called
"plate transformers". These are HV transformers designed for
powering HAM radio tube transmitters. Companies like
THORADSON should carry something that you can use.

Fr. Tom McGahee

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From: Rich Graziano <.....smgKILLspamspam@spam@ACNINC.NET>
To: PICLISTspamKILLspamMITVMA.MIT.EDU
Subject: High Voltage Power Transformers
Date: Wednesday, January 06, 1999 12:07 PM

I am looking for a commercial source for high voltage transformers with a second
ary output voltage of 1500 volts and a secondary
current of 200mA into a 10k load.  The primary voltage could be 120 volts and th
e operating frequency can be 60Hz or any other
specific frequency above that (less than 20KHz).

I want an off-the shelf design, not a special.  I have not had much luck locatin
g a manufacturer of high voltage transformers
having outputs grearer than 220 V.

Any help would be appreciated.

Richard

1999\01\06@173000 by Rich Graziano

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Tom:

Thanks for the check on my ohms law.  I agree.  Also, I did not try plate
transformers.  God Idea!  There must be some tube products still around.
Especially for HV since there are no HV semiconductors above 1.2KV that I
know about.

I appreciate your help.

TNX RG


{Original Message removed}

1999\01\06@173806 by Reginald Neale

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>Tom:
>
>Thanks for the check on my ohms law.  I agree.  Also, I did not try plate
>transformers.  God Idea!  There must be some tube products still around.
>Especially for HV since there are no HV semiconductors above 1.2KV that I
>know about.
>

I think a microwave oven transformer is in that range.

Reg Neale

1999\01\06@174654 by dave vanhorn

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At 05:20 PM 1/6/99 -0500, Rich Graziano wrote:
>Tom:
>
>Thanks for the check on my ohms law.  I agree.  Also, I did not try plate
>transformers.  God Idea!  There must be some tube products still around.
>Especially for HV since there are no HV semiconductors above 1.2KV that I
>know about.


There are, they just are rather specialized.  Microwave oven rectifiers and
caps you may find interesting, I've got some 1200V Mosfets here,

1999\01\06@183836 by Rich Graziano

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Dave:

Thanks for the info.  I am going to look at uWave transformers


Richard



-----Original Message-----
From: dave vanhorn <.....dvanhornKILLspamspam.....CEDAR.NET>
To: EraseMEPICLISTspam_OUTspamTakeThisOuTMITVMA.MIT.EDU <PICLISTspamspam_OUTMITVMA.MIT.EDU>
Date: Wednesday, January 06, 1999 5:46 PM
Subject: Re: High Voltage Power Transformers


{Quote hidden}

1999\01\06@203329 by Brad Stockdale

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At 05:20 PM 1/6/99 -0500, you wrote:

>>I am looking for a commercial source for high voltage transformers with a
>secondary output voltage of 1500 volts and a secondary
>>current of 200mA into a 10k load.  The primary voltage could be 120 volts
>and the operating frequency can be 60Hz or any other
>>specific frequency above that (less than 20KHz).

Well, I'd start by looking into a plate transformer as others have
suggested. Next in line would be a microwave oven high voltage
transformer... The one for the magnetron. I've used these for vacuum tube
tesla coils in the past, and are  quite good. They have plenty of current,
and are usually 1500 - 2500 volts.

Brad - @spam@bstockdaKILLspamspamwvu.edu

1999\01\06@211520 by Kelly J Kohls

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Greetings All!

>I am looking for a commercial source for high voltage transformers
>with a secondary output voltage of 1500 volts and a secondary
>current of 200mA into a 10k load.  The primary voltage could be 120

Although I haven't seen an ad for this company recently, you might try:

Peter Dahl Co.
5869 Waycross Avenue
El Paso, Texas  79924
1-915-751-2300
Fax: 1-915-751-0768

Kelly Kohls
Amateur Radio Callsign: N5TLE
Home E-Mail Address: KILLspamkkohlsKILLspamspamjuno.com or RemoveMEn5tleTakeThisOuTspamqsl.net
Homepage URL: http://www.qsl.net/n5tle

___________________________________________________________________
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Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
or call Juno at (800) 654-JUNO [654-5866]

1999\01\07@083620 by wwl

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On Wed, 6 Jan 1999 21:12:52 EST, you wrote:

>Greetings All!
>
>>I am looking for a commercial source for high voltage transformers
>>with a secondary output voltage of 1500 volts and a secondary
>>current of 200mA into a 10k load.  The primary voltage could be 120
If you're looking for something cheap & off-the-shelf, how about a
microwave oven transformer - a 220V one run at 120V will get you
pretty close.

1999\01\07@100939 by Rich Graziano

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Kelly:

Thank you for the lead.  I will try to follow up on it.

Regards,

Richard


-----Original Message-----
From: Kelly J Kohls <spamBeGonekkohlsspamBeGonespamJUNO.COM>
To: TakeThisOuTPICLISTEraseMEspamspam_OUTMITVMA.MIT.EDU <RemoveMEPICLISTspamTakeThisOuTMITVMA.MIT.EDU>
Date: Wednesday, January 06, 1999 9:14 PM
Subject: Re: High Voltage Power Transformers


{Quote hidden}

1999\01\07@113820 by WIL REEDER

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Hi Rich;

I'm not sure on this one but I would probably go looking for a fluorescent
lamp ballast. Some of them are actual transformers and you may find one to
drive 300w. should be cheap too!
good luck

Wil

----------
From: Rich Graziano <RemoveMEsmgEraseMEspamEraseMEACNINC.NET>
To: RemoveMEPICLISTspam_OUTspamKILLspamMITVMA.MIT.EDU
Subject: High Voltage Power Transformers
Date: Wednesday, January 06, 1999 9:07 AM

I am looking for a commercial source for high voltage transformers with a
secondary output voltage of 1500 volts and a secondary current of 200mA
into a 10k load.  The primary voltage could be 120 volts and the operating
frequency can be 60Hz or any other specific frequency above that (less than
20KHz).

I want an off-the shelf design, not a special.  I have not had much luck
locating a manufacturer of high voltage transformers having outputs grearer
than 220 V.

Any help would be appreciated.

Richard

1999\01\07@144134 by Rich Graziano

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Wil:

Thanks much for the response.  This is one of the best groups ever.
Regards,

Richard


-----Original Message-----
From: WIL REEDER <RemoveMEteachtechTakeThisOuTspamspamBC.SYMPATICO.CA>
To: EraseMEPICLISTspamspamspamBeGoneMITVMA.MIT.EDU <RemoveMEPICLISTKILLspamspamMITVMA.MIT.EDU>
Date: Thursday, January 07, 1999 11:48 AM
Subject: Re: High Voltage Power Transformers


{Quote hidden}

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