[sdiy] +-12V supply

[harrybissell]

fvck it... buy a PowerOne and be done !!!

(this is why I don't build power supplies  :^)

H^) harry

Chris CROSSKEY wrote:

>  Toss out the 7812/7912 and use a 723 on each side with a big bypass
> transistor.....
>
> that said, don't overdo the resevoir cap or it will start to make ripple an
> issue, a series of decade divided bypass caps isn't a bad idea... 100uF
> tant, 10uF tant, 1uF, 100nF,10nF, 1nF polyester...OTT but you get a nice
> warm glow from the knowledge that everythign is getting caught.... they
> ain't no such thing as an oversized heatsink, overspec the rectifier to make
> sure it runs cold, over spec the transformer adn make sure it's toroid.....
>
> chrisc
>
> ----- Original Message -----
> From: "Pat Kammerer" <spivkurl at wearerecords.com>
> To: "sdiy" <synth-diy at dropmix.xs4all.nl>
> Sent: Thursday, January 13, 2005 12:57 AM
> Subject: [sdiy] +-12V supply
>
> > 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
> >
> >