_[sdiy]_+-12V_supply

[James Patchell]

Making blanket statements about parts sucking always cracks me up.  Since 
the 78xx/79xx regulators are the biggest selling regulators, that either 
means everybody is stupid, or the parts must have true value.  I have run 
into a few engineers who felt the same way.  After fixing their mistakes, 
the parts have always worked flawlessly.  There are applications where they 
will not work.  I think I have only encountered one of those in 30 years....

At 07:02 AM 1/14/2005 -0700, Scott Gravenhorst wrote:
>=?iso-8859-2?Q?Roman?= <modular at go2.pl> wrote:
> >if putting 723 instead of 7812 is an overkill, how would you call
> >someone who made 1.5A power supply using regular opamps,
> >darlington transistors, lots of other components, and 10ppm/K
> >reference IC, where LM317/337 would be more than enough?
> >
> >You're right, a crazy maniac.
> >But I just wanted it so bad.
> >
> >BTW, IMHO 78xx and 79xx suck
> >
> >Roman
>
>Hmm.  Well, everyone is entitled to an opinion, I use 78xx and 79xx
>and I don't have problems with them.  I just don't hear the noise
>that they're supposed to make.  Not only do I use these nasty 3
>terminal regulators, I use them with AC wallwarts and halfwave
>rectifiers.
>
> >
> >---- Wiadomo¶æ Oryginalna ----
> >Od: "Roy J. Tellason" <rtellason at blazenet.net>
> >Do: synth <synth-diy at dropmix.xs4all.nl>
> >Data: Thu, 13 Jan 2005 20:50:36 -0500
> >Temat: Re: [sdiy] +-12V supply
> >
> >> On Thursday 13 January 2005 06:55 pm, Chris CROSSKEY wrote:
> >> >  Toss out the 7812/7912 and use a 723 on each side with a big bypass
> >> > transistor.....
> >>
> >> Why,  if the simpler setup will do what you need?  Did I miss 
> something there
> >> that indicated a massive current draw requirement or something?
> >>
> >
> >
>
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>-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
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         -Jim
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