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<p class="MsoNormal"><span style="font-size:14.0pt">That’s correct. A TR3 is non-ballasted and needs a coil with 3 ohms resistance.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Joel…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b>From:</b> Geo Hahn <ahwahneetr@gmail.com> <br>
<b>Sent:</b> Saturday, April 6, 2019 4:21 PM<br>
<b>To:</b> *Triumphs List <triumphs@autox.team.net><br>
<b>Subject:</b> Re: [TR] 1959 TR3A<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">If there are confusing or conflicting references... perhaps the simplest approach would be to measure the resistance across the terminals.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">If I recall correctly...<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">About 3 ohms is correct for a TR3<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">About 1.5 ohms is a coil that needs an external ballast resistor<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Sat, Apr 6, 2019 at 2:03 PM wbeech <<a href="mailto:wbeech@flash.net">wbeech@flash.net</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">BPNW cross-references this number to their ballasted coils, but oddly,<br>
doesn't tie it to a TR3 application. With that bit of knowledge I would say<br>
that it will work in your TR3A, assuming it is a good coil.<br>
NFI,<br>
Bill B<br>
TS30800L<br>
<br>
-----Original Message-----<br>
From: Triumphs [mailto:<a href="mailto:triumphs-bounces@autox.team.net" target="_blank">triumphs-bounces@autox.team.net</a>] On Behalf Of Randall<br>
Sent: Saturday, April 6, 2019 2:20 PM<br>
To: 'Italyfound' <<a href="mailto:italyfound@gmail.com" target="_blank">italyfound@gmail.com</a>>; '*Triumphs List'<br>
<<a href="mailto:triumphs@autox.team.net" target="_blank">triumphs@autox.team.net</a>><br>
Subject: Re: [TR] 1959 TR3A<br>
<br>
My Lucas catalog seems to indicate that it requires a ballast resistance;<br>
Lucas model 2BR P/N 47170A<br>
<br>
The coil & ballast are listed as a "cold climates" option for 65 TR4.<br>
<br>
-- Randall<br>
56 TR3 TS13571L once and future daily driver<br>
71 Stag LE1473 - awaiting engine rebuild<br>
71-2-3 Stag - awaiting gearbox rebuild <br>
<br>
<br>
> I have a Lucas coil (NOS) with the numbers 45139 <br>
> B.........Type BA7 12V<br>
> <br>
> will this work on my 59 TR3A<br>
<br>
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