Doug,
I have a 1959 TR3A USA model and many years ago I bought a new 1956 TR3
Canadian model.
Neither has a dimmer for the panel lights. I believe the dimmer was
added for 1960 and subsequent years.
My 1959 car has a heater rheostat which measures between 0.4 (fast) and
2.6 (slow) ohms on my digital multimeter and somewhere around 2-4 ohms
(slow) on an old analog multimeter with an erratic battery. Its shaft is
shorter than that of my panel light switch (which has no rheostat).
So I wd guess your 3 ohm rheostat is for the heater.
Hope this helps....... Pat Mullen TS43208L
HAMILTON DOUG wrote:
>
> Help,
> I made the mistake of taking both the panel dimmer(long shaft) and
> heater control(short shaft) rheostats apart to clean them at the same
> time, on my 60 TR3A. One is a 3 ohm rheostat and the other is a 6 ohm
> rheostat which is which. There is no reference to the specs of these in
> any of the shop manuals or the Triumph parts book. Please reply directly
> to me as I'm on the digest.
>
> Doug Hamilton
> 60 TR3A TS70001L
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