Re: [TR] 1959 TR3A

[Geo Hahn <ahwahneetr@gmail.com>]

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If there are confusing or conflicting references... perhaps the simplest
approach would be to measure the resistance across the terminals.

If I recall correctly...

About 3 ohms is correct for a TR3

About 1.5 ohms is a coil that needs an external ballast resistor



On Sat, Apr 6, 2019 at 2:03 PM wbeech <wbeech@flash.net> wrote:

> BPNW cross-references this number to their ballasted coils, but oddly,
> doesn't tie it to a TR3 application.  With that bit of knowledge I would
> say
> that it will work in your TR3A, assuming it is a good coil.
> NFI,
> Bill B
> TS30800L
>
> -----Original Message-----
> From: Triumphs [mailto:triumphs-bounces@autox.team.net] On Behalf Of
> Randall
> Sent: Saturday, April 6, 2019 2:20 PM
> To: 'Italyfound' <italyfound@gmail.com>; '*Triumphs List'
> <triumphs@autox.team.net>
> Subject: Re: [TR] 1959 TR3A
>
> My Lucas catalog seems to indicate that it requires a ballast resistance;
> Lucas model 2BR P/N 47170A
>
> The coil & ballast are listed as a "cold climates" option for 65 TR4.
>
> -- Randall
> 56 TR3 TS13571L once and future daily driver
> 71 Stag LE1473 - awaiting engine rebuild
> 71-2-3 Stag - awaiting gearbox rebuild
>
>
> > I have a Lucas coil (NOS) with the numbers 45139
> > B.........Type BA7 12V
> >
> > will this work on my 59 TR3A
>
> ** triumphs@autox.team.net **
>
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<div dir=3D"ltr">If there are confusing or conflicting references... perhap=
s the simplest approach would be to measure the resistance across the termi=
nals.<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 i=
s a coil that needs an external ballast resistor</div><div><br></div><div><=
br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gma=
il_attr">On Sat, Apr 6, 2019 at 2:03 PM wbeech &lt;<a href=3D"mailto:wbeech=
@flash.net">wbeech@flash.net</a>&gt; wrote:<br></div><blockquote class=3D"g=
mail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">BPNW cross-references this number to their ball=
asted coils, but oddly,<br>
doesn&#39;t tie it to a TR3 application.=C2=A0 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=3D"mailto:triumphs-bounces@autox.team.net"; t=
arget=3D"_blank">triumphs-bounces@autox.team.net</a>] On Behalf Of Randall<=
br>
Sent: Saturday, April 6, 2019 2:20 PM<br>
To: &#39;Italyfound&#39; &lt;<a href=3D"mailto:italyfound@gmail.com"; target=
=3D"_blank">italyfound@gmail.com</a>&gt;; &#39;*Triumphs List&#39;<br>
&lt;<a href=3D"mailto:triumphs@autox.team.net"; target=3D"_blank">triumphs@a=
utox.team.net</a>&gt;<br>
Subject: Re: [TR] 1959 TR3A<br>
<br>
My Lucas catalog seems to indicate that it requires a ballast resistance;<b=
r>
Lucas model 2BR P/N 47170A<br>
<br>
The coil &amp; ballast are listed as a &quot;cold climates&quot; 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>
&gt; I have a Lucas coil (NOS) with the numbers 45139 <br>
&gt; B.........Type BA7 12V<br>
&gt;=C2=A0 <br>
&gt; will this work on my 59 TR3A<br>
<br>
** <a href=3D"mailto:triumphs@autox.team.net"; target=3D"_blank">triumphs@au=
tox.team.net</a> **<br>
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</blockquote></div>

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