<div dir="ltr">If there are confusing or conflicting references... perhaps the simplest approach would be to measure the resistance across the terminals.<div><br></div><div>If I recall correctly...</div><div><br></div><div>About 3 ohms is correct for a TR3</div><div><br></div><div>About 1.5 ohms is a coil that needs an external ballast resistor</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Apr 6, 2019 at 2:03 PM wbeech <<a href="mailto:wbeech@flash.net">wbeech@flash.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">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>
** <a href="mailto:triumphs@autox.team.net" target="_blank">triumphs@autox.team.net</a> **<br>
<br>
Donate: <a href="http://www.team.net/donate.html" rel="noreferrer" target="_blank">http://www.team.net/donate.html</a><br>
Archive: <a href="http://www.team.net/pipermail/triumphs" rel="noreferrer" target="_blank">http://www.team.net/pipermail/triumphs</a>  <a href="http://www.team.net/archive" rel="noreferrer" target="_blank">http://www.team.net/archive</a><br>
<br>
Unsubscribe/Manage:<br>
<a href="http://autox.team.net/mailman/options/triumphs/wbeech@flash.net" rel="noreferrer" target="_blank">http://autox.team.net/mailman/options/triumphs/wbeech@flash.net</a><br>
<br>
** <a href="mailto:triumphs@autox.team.net" target="_blank">triumphs@autox.team.net</a> **<br>
<br>
Donate: <a href="http://www.team.net/donate.html" rel="noreferrer" target="_blank">http://www.team.net/donate.html</a><br>
Archive: <a href="http://www.team.net/pipermail/triumphs" rel="noreferrer" target="_blank">http://www.team.net/pipermail/triumphs</a>  <a href="http://www.team.net/archive" rel="noreferrer" target="_blank">http://www.team.net/archive</a><br>
<br>
Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/triumphs/ahwahneetr@gmail.com" rel="noreferrer" target="_blank">http://autox.team.net/mailman/options/triumphs/ahwahneetr@gmail.com</a><br>
</blockquote></div>