RONG, THE gREEN gROUNFD LUG IS earth GROUND.

Regards,

Jim

> -------- Original Message --------
> Subject: Re: [EE] Need a cheap power supply
> From: Eric Kort <eric.kort@exsilico.com>
> Date: Wed, February 22, 2012 9:00 pm
> To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>=20
>=20
> On Wed, Feb 22, 2012 at 9:24 PM, peter green <plugwash@p10link.net> wrote=
:
> > Nathan House wrote:
> >> Update..
> >>
> >> I ended up either making a good decision or a bad decision. I was
> >> watching a power supply (BK Precision 9123A, 0-30V, 0-5A) that looked
> >> really nice on ebay when I first asked my question, but didn't think I
> >> would end up buying it as it looked like quite an expensive one. I
> >> bought it. Unfortunately I went way over budget and paid $191.27 with
> >> $26.83 shipping, so $218.10 total (yikes!). I guess it's worth it if
> >> it's something I'll use for a long time, though. Here a a few
> >> pictures:
> >>
> >> http://www.roboticsguy.com/uploads/gallery/album_17/gallery_1_17_13474=
1.jpg
> >> What do you think?
> > There are two things I don't like about it.
> > 1: It's only single output, IMO a bench supply should be dual output as
> > many analog circuits need both positive and negative supplies
> > 2: It doesn't have binding posts. I want to be able to stick bare wires
> > on my PSU directly without having to worry about fitting connectors fir=
st.
> >
> > For a general lab power supply i'd much rather have dual outputs and
> > binding posts than programability and super accurate output voltages.
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> I'm a little confused (not hard to do).  Yes, it says single output,
> but it has +, -, and ground connectors.  So if it is set, say, to 25V
> as shown in one of the figures, it would also supply +12.5V and -12.5V
> relative to the ground connector, right?
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> Pretty!
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> -Eric
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