FROG AYE died on me the other day and I have traced the problem, I think, to
the electronic tach. It is not original (obviously) but is from a later
model. It says "4 cyl / positive earth / RV12401/00B / Smiths / made in UK"
on the face. Can any one supply me with a wiring diagram for this device?
How is it supposed to be hooked up in the car?
Right now I have become a future DPO and have semi permanently hotwired the
car so I can drive it. I'm sure I could have done a more clean job but I
didn't want to admit to myself that this is anything but a temporary fix.