Not Ranked
Kind of, yes. A potentiometer (pot) is a three post variable resistor and a rheostat is a two post variable resistor. A pot can be wired as a rheostat by using only two of the posts.
The idea here is to use an original style knob but be able to still dim the dash lights w/o having to go into to debt with a second on your house. I'm sure some kind of pot or rheostat can be found online with the correct ohm range and glue the original knob on if need be. No one would know it wasn't a Lucas dimmer unless you knew to look for the correct trim ring under the knob.
Larry
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