TU56/TC11 restoration - Power supply question

[Ashley Carder]

> > On a related note...any special concerns on an initial powerup of a
> > TU-56 that has not been turned on for possibly 5+ years....??
> 
> Any solid DC supplies that match the requirements of the TC11/TU56
> should be fine.  The TU56 on my 8-e has a non-DEC supply and it seems to
> work fine.

Guy said: 
> Other than the usual caution about capacitors in power supplies....

Since I am fairly new to the hardware end of this stuff and just started
messing with it less about 8 or 9 months ago, can you give me 
a little primer on the caution of capacitors in power supplies?

Ashley