On Wed, Feb 22, 2012 at 9:24 PM, peter green 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_134741.= 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 first= .. > > For a general lab power supply i'd much rather have dual outputs and > binding posts than programability and super accurate output voltages. 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? Pretty! -Eric --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .