"William Donzelli" <wdonzelli at gmail.com> wrote:
The caps from 1960s seem to be of little concern, and
those from past
1970 are of no concern. If the cap decides to die, its going to die.
Take it one step further: apply higher than normal line voltage
to purposefully seek out and destroy the flaky capacitors.
Called "margining" in more than one industry.
Tim.