Not a bass, but totally related to it, it's my JBC SL 2300 soldering station bought around 35 years ago, used a lot since then on thousands of items, almost every day in the beginning and at least once a week since a few years.
It was costing a lot back then, the price of a new good quality bass...
I'm going to change the tip for the first time after around 35 years as soon as I receive the official one ordered.