[TR] 1959 TR3A

[Geo Hahn]

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 at 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 at autox.team.net] On Behalf Of
> Randall
> Sent: Saturday, April 6, 2019 2:20 PM
> To: 'Italyfound' <italyfound at gmail.com>; '*Triumphs List'
> <triumphs at 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
>
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