Any one heard of electro power supply?

[asgard20032]

My friend need to equip his lab, and while searching, I found that : http://i.ebayimg.com/00/s/NjAwWDgwMA==/z/kd4AAOSwVyRXTwmu/$_27.JPG

35$ CAD

Originally I wanted him to get some used HP power supply. But at this price... I am just wondering If anyone heard of those, can't identify that model.

It is either 35$ CAD + some fuel and some wasted driving time or 60-80$ CAD for the top of the line used HP.

Edit: Also found this one : http://i.ebayimg.com/00/s/NjAwWDgwMA==/z/~a0AAOSwintXS0t3/$_27.JPG for 25$, but again, know nothing about this one.

[KMoffett]

No images in your links!

Ken

[dentaku]

No images in your links!

Ken

You have to copy and paste the links into our browser because the URLs contain a $ which messes up the link on this forum.

[wraper]

There is no current regulation on both of them.

[macboy]

The Electro one is called a "filtered DC supply", which might mean that it is not even regulated. It might be little more than a variac followed by a rectifier and smoothing caps. The other one is intended for powering car electronics, such as a CB radio or something similar.

Both of those are high current supplies. The first (Electro) looks like it might do up to 30 A, judging only by the meter. The second can do up to 12 A. Neither appears to have current regulation of any kind much less adjustable. That means that they could deliver far more than rated current in a fault (short circuit) condition. Using a high current supply for bench work is dangerous since an "oopsie" moment can cook your circuit and/or breadboards, and might even start a fire. I'd strongly recommend a lower current supply.