I always liked them too. Some years back I was making side money fixing the ones that were in the Chrysler K karz. The power diodes and solders would fail. The tubes them self have a fairly good lifespan. Longer that the usable hour life of the average car.
Usually when they fail its something to do with the high voltage supply just like a tv.
I also liked those old LED displays that had the little bubble magnifier over each character.
|