[sdiy] in need of a good bench supply (+/- 0-18 volts and 5)

[Eric Brombaugh]

On 10/27/2009 07:16 AM, Dan Snazelle wrote:

> I need a solid bench power supply that is NOT connected to my modular, and has a nice case (unlike my home-made stuff) and doesnt suffer from ripple,etc. I was looking at this one:
>
> http://www.web-tronics.com/dualout03x22.html
>
> but from the datasheet (unless i read it wrong) it seems to have 2 +/- outputs and a 5volt out, which is actually more than I need. but it IS under 200.

I've bought a number of supplies from those guys, mostly because they're 
about 10 minutes away and I can run over at a moment's notice. I have 
two of the 5A version of that triple output supply and they work pretty 
well. The knobs are 10-turn with precise adjustment, the displays are 
large and easy to read and the operation is pretty intuitive.

Just one thing I don't like about these supplies - when you first turn 
them on they default to parallel operation. I'm not sure if that's just 
the 5A version, or something odd about the ones I have. Since parallel 
is not usually what I want, I have to punch the mode select right away. 
I called CSI about this, but nobody there knows much about these 
supplies - they buy them made-to-order from China. I'd have preferred a 
persistent setting or toggle switch.

Otherwise, they're nice and a good value.

Eric