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:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE;
  b=lmPN3kllQE32oKSWe6IepVuXttLbEr4zJeEynAt1CsMF9NxxLW590Cdv6OHPIMiyP6flSl4n3OWbVv0FUIVcJl5dnju4wMJzybOhBzIOp37gxnPdiFb0rC4OVYeI4dxxPVGUM2PQgmzuuKo0ggeImyiblReA0e073dMtXLvkA4w=  ;
Message-ID: <1EDB89E6D3E24E008B4897CFE896A09F@lindavideo>
From: "Ken" <ken.h.wright@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
Date: Tue, 14 Jul 2009 20:21:56 +0100
MIME-Version: 1.0
DomainKey-Status: good (testing) 
Subject: LF: Microwave oven transformers
Content-Type: multipart/alternative;
	boundary="----=_NextPart_000_0014_01CA04C0.BBA9CDA0"
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org


------=_NextPart_000_0014_01CA04C0.BBA9CDA0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

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.

Any comments on this most welcome

Note for Mal, this is serious stuff not for appliance operators.

Regards
Ken Wright

73 de M0KHW

------=_NextPart_000_0014_01CA04C0.BBA9CDA0
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" http-equiv=3DContent=
-Type>
<META name=3DGENERATOR content=3D"MSHTML 8.00.6001.18783">
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT size=3D2 face=3DArial>Hello everyone.</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial>Does any one have experience in using=
 microwave=20
oven transformers in high voltage power units, I acquired two of these=
 at the=20
weekend. I was informed that as they stand the voltage regulation is=
 poor, to=20
improve this the 'Core Shunts' should be removed, (these are laminatio=
ns between=20
the two stacks), removal of these 'shunts' also has the effect of cons=
iderably=20
increasing the magnetisation current. The solution to this seems to be=
 to use=20
two transformers, connecting the both primaries and secondary's in ser=
ies to=20
restore the 2KV output voltage.</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2 face=3DArial>Any comments on this most welcome</FO=
NT></DIV>
<DIV><FONT size=3D2 face=3DArial></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2 face=3DArial>Note for Mal, this is serious stuff=
 not for=20
appliance operators.</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2 face=3DArial>Regards</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial>Ken Wright</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2 face=3DArial>73 de M0KHW</FONT></DIV></BODY></HTML=
>

------=_NextPart_000_0014_01CA04C0.BBA9CDA0--