[sdiy] +-12V supply

[jays at aracnet.com]

Pat,

Use LM317s and LM337 or some of Linear Techs lower noise 3 tabs. LM317/LM337 will give about 10 db better noise rejection and Linear Techs will do better than that. I only use 7805s any more and those are only for digital stuff.

Jay S.

at Kammerer <spivkurl at wearerecords.com> wrote :

> Okay I'm making a PCB for an improved power supply (based on 7812 and 7912
> TO-220), and I had a quick question.
> 
> Other than larger filter capacitors, are there any simple modifications to
> the "basic" regulated power supply which would enable even lower
> noise
> floor?  Maybe it's too vague, but I'm not sure how else to put it.  I just
> want to make a good simple low noise linear PSU.
> 
> Thanks for any help,
> Pat