Using a Variac to revive power supplies
eric at brouhaha.com
Thu Dec 23 12:31:16 CST 2010
Tobias Russell wrote:
> I've recently acquired a Variac (220V 10A) and was wondering what the
> collectives views are on using them to revive long dormant power
> but will it also work with later DEC switchmode PSUs?
No! You should never run a switching supply on a variac, except within
the supply's rated input voltage range. Definitely do not plug the
supply into the variac and dial it up from zero!
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