[sdiy] +-12V supply

[harrybissell]

Post regulator filtering... maybe RC or LC filters (you lose efficiency but
gain
less noise / ripple)

If you are using really low current... you couls add zener shunt regulators.
They have
little noise and almost NO ripple (they are VERY fast acting)

H^) harry

Pat Kammerer 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