7 Aug
2012
7 Aug
'12
2:55 p.m.
On 7 Aug 2012 at 17:25, Alex Melt wrote:
Related, is there a generally recommended guide for
bringing up old
PSUs?
It depends upon the type of PSU.
Linear PSUs are better brought up with a dummy load with the line
voltage being brought up very gradually until full line voltage has
been reached.. There's some debate about this, but the old-time
radio guys seem to swear by it.
As I understand it, the idea is to re-form the oxide layer in any
electrolytic capacitors.
With switch-mode PSUs, it's generally "apply full power" (with an
appropriate load) and stand back, because switch-mode PSUs depend on
a certain level of line voltage for operation. Too low and you risk
damaging things.
...or so I've heard,
--Chuck