Those 30v 3amp Dual "tracking" Power supplies..

Joined 2023
Paid Member
Hi, can you please school me on today's plethora of these power supplies.. ?
Looks like clones of the Tektronics from some years ago.

Noisy ? good regulation, tracking, V droop with pulsed/ fast rise time loads, etc. ?

I am going to need one soon enough, though the Voltage and Current are under what I would prefer.
Currently have a feeler out to a local PS repair shop for an adjustable dual 50V 10A, but I probably wont be able to afford it.
As a mid-choice lets say a 36 - 38V 5A, Dual tracking adjustable bench supply would be great.

thanks very much for your advice!