[sdiy] 78xx regulator gives negative output half the time

[Ian Fritz]

At 05:42 PM 4/28/2010, Karl Ekdahl wrote:
>However i'm still not entirely sure i understand why this is happening in 
>the first place, JH suggested he's seen it while doing circuits with 
>unevens loads - but i've built literally 100s of circuits using this very 
>same PSU scheme - that definitely have uneven loads - and i've never had 
>this happen before.

Different manufacturers?  There's been trouble with this reported in the past.

Ian