PDP 11 gear finally moved - test-drb@ccmp.vtda.org

22 Jul 2015

...
  From: tony duell 
...
  it's quite possible they started off at the top
end of that range, have
 deteriorated over the years, and are still within spec. Of course
 nobody can prove that (unless there are records of the values meaured
 50 years ago) 
Well, I don't know about 50 years, but I know some of the restorations (where
people said they checked that their electrolytics were still withina spec)
were a while back, so _iff_ they have records of what they measured, it would
be interesting to see if there's any drift from then, to now. But I have no
idea what numbers they have, they'd have to speak to that.

...
  I have no idea what was measured. The capacitance
value is not the
 whole story by any means. In fact the most important thing most of the
 time is ESR  
Again, I have no idea what they measured, so they'd have to respond on that.

	Noel