On 04/07/2021 03:03, Peter Fairbrother wrote:
(though quality well-sealed electrolytic caps can last a very long time - Last year I was refurbishing some early computer monitors (CUB's for BBC micros) and the
electrolytics in the CRT monitors, which had been operating 8 hours per day 5 days per week for 20 years then stored for 15 years, were with only one exception in about a dozen monitors, a physically very small 1uF cap, still well in spec)