Display board inside faulty Ohaus precision (i.e. expensive) weigh scales. Someone's suspected of plugging in the wrong plug-top power supply, which led to its permanent demise. Suppose over 25 years of use was a good lifespan, but it could have been much longer.

Another bl**dy puncture (#4, rear tyre this time), on a cool wet evening, somewhere on the cyclepath above North Kessock. Walked the remaining five miles home.