['LIVEWIRE?']

I normally replace all waxies with those yellow axial capacitors, for the same reasons that David has stated in the above post, and usually replace old reservoir & smoothing caps. withnew, usually F&T dual Electrolytics, but I still do check for other faults and their causes, and, in the case finding such faults, replace the faulty component(s) with the nearest available modern equivalents. Some forum members may be aware of Alan Marchant, who owns/runs The Vintage Wireless Company in Cheshire. He sells restored vintage car radios, and his approach is to completely strip down and rebuild them, replacing all faulty components, plus other components and wiring which may cause problems in future. Having seen a few radios which have passed through Alan's hands, I can confirm that they look, and sound, as if they were made yesterday, rather than 40 or 50 years ago.