"Chuck Harris" wrote in message
...


[snip]

Notice three things about the above dissertation:

1) The oxide layer is formed before assembly, and its thickness
determines both the working voltage, and the capacitance.

2) The working electrolyte makes contact to the oxide layer, and
also performs a rehealing feature that repairs any faults in
the oxide layer by reanodizing the layer.

3) The working electrolyte will dissolve the oxide layer over time
if no voltage is applied to the capacitor. This is the cause of
shelf life.


I believe this discription. I have personally witnessed it many many
times with old aluminum electrolytics (with wet working electrolytes).

You can continue to think it a myth, but it isn't.

-Chuck Harris, WA3UQV


Which "it" is the myth? If we are discussing the idea that the
capacitance of electrolytic capacitors changes in a significant way with
operating voltage and long term storage, shouldn't it be very evident?

Have there been any graphs published showing how capacitance changes
with operating voltage or storage time?

Frank Dresser