![](http://files.elv.de/bilder/journal/2003_01/01/2003_01_01_pps7330_kopfbild.jpg)
For some reason I like the look of that PSU
There's definitely something to admire about having a minimalist purpose-built appliance ![Cheesy :D](https://www.eevblog.com/forum/Smileys/default/cheesy.gif)
I really like how there are arrows between the numbers presumably for easy fine adjustment of the voltage and current.
On a power supply especially the less buttons and the cleaner the readouts of values the better.
Doing a quick search online doesn't yield many results however. Going to look into this a little further. Have actually been shopping for a new bench-top PSU.
That is an obsolete model.
I got one on the bench at work. When I bought it many years ago I also went by the looks and practicality of it.
And it is really precise, that display is not for shows.
However the quality of some parts is not very good, the rotary encoder is failing for the second time now (ALPS).
The electrical design is partially bad. When it comes from the factory it only has a built-in two wire mains cable.
Since it uses a pretty good toroidial transformer the capacitive coupling between mains and secondary is very high, resulting in a high leakage current. That is just bad design. It blew up some CMOS stuff because when I was touching it with the ESD strip on I mananged to get some 80V AC on a MOSFET gate. Even with 1M (me connected to the strip) enough to blow it up.
So I had to modify it. I put an IEC320 socket into the backplate and connected the internal GND to earth using a X2 capacitor.
Eversince the leakage current is mostly going trough that capacitor, only some <5V remain when measured with 1M Ohm impedance.
That's not the first time ELV made bad power supplies.
The model before that had another design failure:
There are electrolytic capacitors for the power supply part and one for the control part.
If the one for the control part starts loosing capacity due to aging the power supply would supply >30V to your circuit when you switch it off, because the cap for the inerts discharges faster than the ones for the PSU part.