En el artículo , chuck
escribió:

To clarify, this isn't the standard cap wrapping from the factory.
This is a thick piece of shrink tubing that is put over the
capacitor's normal wrapping and then shunk tightly around the cap like
a blanket. Chuck

Maybe to prevent reading off the value for replacement? Built-in
obsolescence, in the same way the some makers grind the identifying
marks off the top of ICs?

You say in a later post that Extron don't support outside repair, which
lends weight to that theory.

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