I recently put a Technics DD turntable from the late 80's back into service. I replaced EVERY electrolytic AL cap. Many were starting to show corrosion at one electrode.
Please remember you cannot judge the quality of 20 yr + old AL caps by specs of today's products. Back 20-30 years ago they were not as good as today's premium brands (not the cheapo stuff).
I have Tektronix O-scopes and electronic equipment from the 70's which used a lot of solid tantalum electrolytics. I have yet to see one of these fail. They are vastly superior to Al electrolytics from a lifetime perspective.
Please remember you cannot judge the quality of 20 yr + old AL caps by specs of today's products. Back 20-30 years ago they were not as good as today's premium brands (not the cheapo stuff).
I have Tektronix O-scopes and electronic equipment from the 70's which used a lot of solid tantalum electrolytics. I have yet to see one of these fail. They are vastly superior to Al electrolytics from a lifetime perspective.