Return-Path: Received: from rly-mc12.mx.aol.com (rly-mc12.mail.aol.com [172.21.164.96]) by air-mc03.mail.aol.com (v124.15) with ESMTP id MAILINMC031-dad4a5cddeb3b8; Tue, 14 Jul 2009 15:35:40 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mc12.mx.aol.com (v124.15) with ESMTP id MAILRELAYINMC125-dad4a5cddeb3b8; Tue, 14 Jul 2009 15:35:10 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1MQnlW-0003WF-RC for rs_out_1@blacksheep.org; Tue, 14 Jul 2009 20:34:14 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1MQnlW-0003W4-97 for rsgb_lf_group@blacksheep.org; Tue, 14 Jul 2009 20:34:14 +0100 Received: from smtp148.mail.mud.yahoo.com ([209.191.106.59]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1MQnlL-00059a-Ux for rsgb_lf_group@blacksheep.org; Tue, 14 Jul 2009 20:34:04 +0100 Received: (qmail 82372 invoked from network); 14 Jul 2009 19:34:05 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btinternet.com; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=OJlQpYSDZBFpm/S2s00vpMvMy5jFQ3IiqFBNrHaYn/AzzZtXQIu9ile5hDz37MO7mvxYogl7g3XZmBZsLIEtGWFWEQu9eh8bCve+dc6NXffFR9CKeld+MVEK3/MBUihi0LbMGEOLx6l36okcWoLn4Au4BNFF04oOVixgnR92iqo= ; Received: from unknown (HELO lindavideo) (ken.h.wright@86.140.224.132 with login) by smtp148.mail.mud.yahoo.com with SMTP; 14 Jul 2009 19:34:05 -0000 X-Yahoo-SMTP: APVNTmmswBB1ajQe0.MR1eIpHqOdoGKpEnK7HtPhl2t5AIcci3nTdw-- X-YMail-OSG: w9oh12oVM1n0W1Hp1rqG7Gb1aQxmZekLz5QKi0o8l8xblEnaRAxNvYbl.dsCJ7vfbExO3nP8MNfFX0Gi6EJC8wvqc3L_8W3DlM1s1Wr50ze1P8D2wwIGHoCeBc.fDGjAs256mddBr2SO5Tf1r9oSZTkK8T8AA7XEtcFAmLlvmg3FC9dOZMfiSVMKFEJpBq9wM_lewn80cLcl3KCW9k9Mpem56ClvEFj_boDUne4nEqjKnpnE8Fnkf90rciXbHLd_hQf9wgob3FeaoVAP0_yDKg6PoKGnS801lhgbeLRsezp9_IUlHXq_cfFVU9r6CXmS823172DGN1drBosLsK44Wlbsq7SYawsvsAmNu8MQ X-Yahoo-Newman-Property: ymail-3 Message-ID: <59B43DAF72704927B6E58971E3B9D56A@lindavideo> From: "Ken" To: References: <1EDB89E6D3E24E008B4897CFE896A09F@lindavideo> <000301ca04b9$3fdbc9f0$0217aac0@jimdesk> Date: Tue, 14 Jul 2009 20:33:59 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 DomainKey-Status: good (testing) Subject: LF: Re: RE: Microwave oven transformers Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01CA04C2.6AE72460" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.3 required=5.0 tests=EXCUSE_16,FORGED_MUA_OUTLOOK, HTML_60_70,HTML_FONTCOLOR_BLUE,HTML_FONTCOLOR_UNKNOWN, HTML_FONTCOLOR_UNSAFE,HTML_FONT_BIG,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-AOL-IP: 193.82.116.20 ------=_NextPart_000_0009_01CA04C2.6AE72460 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Jim. There will probably be a fair bit of technical smoke comimg out of Lut= on, but that is what our hobby is all about, any other usefull sugesti= ons? Krgards. Ken 73deM0KHW ----- Original Message -----=20 From: James Cowburn=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Tuesday, July 14, 2009 8:28 PM Subject: LF: RE: Microwave oven transformers Tesla Roulette!! =20 With best regards =20 =20 Jim =20 =20 Dr. James Cowburn 26 Birch Close Broom Biggleswade Beds SG18 9NR =20 T +44 (0) 1767 600522 M+44 (0) 7967 300152 E james.cowburn@virgin.net =20 "The information transmitted is intended only for the person to whom= it is addressed and may contain confidential and/or privileged materi= al. If you are not the intended recipient, you are hereby notified tha= t you must not read this message. Any review, retransmission, dissemination or other use of, or taking= of any action in reliance upon, this information by persons or entiti= es other than the intended recipient is prohibited. Consequently, thi= s email is not intended to be contractually binding. If you received this in error, please contact the sender, return the= message as well as its attachments and delete the whole from any comp= uter." =20 ----------------------------------------------------------------------= -------- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group= @blacksheep.org] On Behalf Of Ken Sent: 14 July 2009 20:22 To: rsgb_lf_group@blacksheep.org Subject: LF: Microwave oven transformers =20 Hello everyone. Does any one have experience in using microwave oven transformers in= high voltage power units, I acquired two of these at the weekend. I= was informed that as they stand the voltage regulation is poor, to im= prove this the 'Core Shunts' should be removed, (these are laminations= between the two stacks), removal of these 'shunts' also has the effec= t of considerably increasing the magnetisation current. The solution= to this seems to be to use two transformers, connecting the both prim= aries and secondary's in series to restore the 2KV output voltage. =20 Any comments on this most welcome =20 Note for Mal, this is serious stuff not for appliance operators. =20 Regards Ken Wright =20 73 de M0KHW ------=_NextPart_000_0009_01CA04C2.6AE72460 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Jim.
There will probably be a fair bit of= technical=20 smoke comimg out of Luton, but that is what our hobby is all about, an= y other=20 usefull sugestions?
 
Krgards.
Ken
73deM0KHW
----- Original Message -----
Sent: Tuesday, July 14, 2009= 8:28=20 PM
Subject: LF: RE: Microwave ov= en=20 transformers

Tesla= =20 Roulette!!

&= nbsp;

With= best=20 regards

 

 

Jim

 

 

Dr. Ja= mes=20 Cowburn

26 Bir= ch=20 CloseBroom<= /SPAN><= /o:p>

Biggle= swade=

Beds

SG18= =20 9NR=

 

T +44= (0) 1767=20 600522

M+44= (0) 7967=20 300152

E james.cowburn@virgin.net=

 

=93The=20 information transmitted is intended only for the person to whom it= is=20 addressed and may contain confidential and/or privileged material.= If you are=20 not the intended recipient, you are hereby notified that you must no= t read=20 this message.
Any review, retransmission, dissemination or other= use of, or=20 taking of any action in reliance upon, this information by persons= or entities=20 other than the intended recipient is prohibited.  Consequently,= this=20 email is not intended to be contractually binding.
If you receive= d this in=20 error, please contact the sender, return the message as well as its= =20 attachments and delete the whole from any computer.=94=

 =

<= FONT size=3D3 face=3D"Times New Roman">

From:=20 owner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blackshe= ep.org] On= Behalf Of Ken
= Sent: 14 July 2009 20:22
To: rsgb_lf_group= @blacksheep.org
Subject: LF: Microwave oven=20 transformers

 

Hello=20 everyone.

Does any one have experience in= =20 using microwave oven transformers in high voltage power units, I acq= uired two=20 of these at the weekend. I was informed that as they stand the volta= ge=20 regulation is poor, to improve this the 'Core Shunts' should be remo= ved,=20 (these are laminations between the two stacks), removal of these 'sh= unts' also=20 has the effect of considerably increasing the magnetisation current.= The=20 solution to this seems to be to use two transformers, connecting the= both=20 primaries and secondary's in series to restore the 2KV output=20 voltage.

 

Any comments on this most=20 welcome

 

Note for Mal, this is serious=20 stuff not for appliance operators.

 

Regards<= /P>

Ken=20 Wright

 

73 de=20 M0KHW

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