Chip, the later guage uses a voltage stabilizer through which the power lead
is routed before going to the guage. This not only lowers the voltage to the
guage to about 7.5 volts ( somewhere around there if I remember correctly)
but also makes an intermittent on-off-on-off power pulse every half second
or so. This on-off-on pulse is probably what makes the capacitance type
sender usable. These stabilizers are used on all TR's & MG's from 1968 on. Jim.
+At 11:40 AM 12/2/99 -0500, you wrote:
>Wow. thanks, Bill. That clarifies it pretty well. I should be able, with
>a flashlight and a mirror, see which one I have. Then the trick will be
>to find a modern unit (if that isn't what I currently have) and see if
>it works with this system. My fear is that I buy a modern unit, it
>doesn't work, and (like most electrical parts) it isn't returnable and I
>add it to my mounting pile of orphan parts. If it does work, getting the
>face redone in cream and fitting it into the cluster should be pretty
>easy to do.
>
>Thanks again! What a great list!!
>Chip Brown
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