<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Our Show is over so I can now get back to this. All JD Two Cylinder tractors with batteries left the factory with a positive ground system. Whether the tractor is still configured that way is a crap shoot. I haven’t looked at Pertronix systems for years so I am completely out of date. Early on they did not produce Positive ground systems for the JD tractors. In those days in order to use their Electronic ignition systems the tractor had to be converted to a negative ground system. If they are producing positive ground systems now that is good news. But …. Using their web site to find an applicable system for a JD Model A is an extreme exercise in futility. I would suggest contacting the owner of <a href="https://brillman.com/">https://brillman.com/</a> to get an up to date picture of what might be available from Pertronix for your particular Electronic Ignition requirement.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>However, a properly repaired Magneto or Distributor will work just fine on your JD A. For Magneto parts and real kneadable information I like working with <a href="http://www.magnetoparts.com/index.html">http://www.magnetoparts.com/index.html</a> Bill is an Electrical Engineer that does his Magneto stuff as a side business. Evenings and weekends. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Dean VP<o:p></o:p></p><p class=MsoNormal>Apache Junction, AZ<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> AT <at-bounces@lists.antique-tractor.com> <b>On Behalf Of </b>Jason<br><b>Sent:</b> Wednesday, March 11, 2020 7:29 AM<br><b>To:</b> Antique Tractor Email Discussion Group <at@lists.antique-tractor.com><br><b>Subject:</b> Re: [AT] JD Distributor vs. Magneto<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Yes they make a pertronix for Deere A with a Delco just need to know if 6V or 12 and pos or neg ground.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Honestly probably not needed unless the rotor shaft is wobbly. A good tune up usually gets it done. Clean the point surfaces with alcohol and polish with paper. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Jason<o:p></o:p></p></div><div><p class=MsoNormal>All States Ag Parts<o:p></o:p></p></div><div><p class=MsoNormal>855-530-3384<o:p></o:p></p></div><div><p class=MsoNormal>quiet list member since 1995<o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><div><p class=MsoNormal>On Wed, Mar 11, 2020, 12:38 AM STEVE ALLEN <<a href="mailto:steveallen855@centurytel.net">steveallen855@centurytel.net</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=MsoNormal>Thanks for the info, guys.<br><br>Best I can tell from the pic, it's the Delco unit--it has the round cap and doesn't look like the mags on my other tractors.<br><br>I followed the Petronics link, but the site doesn't admit to having a set for the application. I hadn't considered changing it, but I would consider it if a unit were available. I can keep the original guts for shows or whatever, if necessary. Not planning to show it: I need to use it.<br><br>The "original" Steve Allen<br>_______________________________________________<br>AT mailing list<br><a href="mailto:AT@lists.antique-tractor.com" target="_blank">AT@lists.antique-tractor.com</a><br><a href="http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com" target="_blank">http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com</a><o:p></o:p></p></blockquote></div></div></div></div></body></html>