KA3005D

This is a very nice and not terribly expensive single output power supply. I have yet to use it extensively, but ran it through its paces the other night and found the features worked pretty much as expected. I especially like the programable memories, so I can set it up for different applications, and just tap the memory button and be ready to go. The over voltage and over current protections work well, as do the constant current and voltage functions. I do find the fine adjust a little odd, but that seems par for the course with these supplies. Finally, the ability to switch off the output and adjust the voltage and current with the output off is quite nice. FWIW, I've been doing electronics as a hobby and profession for pushing 50 years now.

Great power supply. A little of the high size of pricing but unlike the less expensive models that will tap out of the correct voltage after 10 or minutes of run time, this just keeps on going.

High quality linear PS. Very low noise. Amazingly accurate digital meter (checked against Keysight DMM). Very good price. Would buy again. And they will answer your emails.

I have a bunch of these and they work absolutely great. One of them has been running 24/7 for probably 2 years now. There are no power spikes if you use the output on/off button, the only way to get a small spike is to cut the mains power while the output is enabled but you're not supposed to do that anyway. I very much prefer these over switch-mode supplies because the output is extremely clean. The voltage and current settings and display are very accurate. I use these all the time and I bought my first one 4 years ago; I have both KA3005D and KA3005P (programmable) models and I've used to software to script one of them for automated testing. I did have an issue at one point where I needed customer support and both Korad and the seller (SRA) have been absolutely great with their support which is really important to me and I would say they went above and beyond. I had originally considered buying a "fancy" bench-top dual supply but decided that for the same money I can get 3 of these and that turned out to be a very good decision. My priority is to never get into a situation where I needed another power supply and not have one. I have 6 of them permanently as part of my work bench and a few more to move around where needed. If for some reason I needed another one I would buy this one again, no question.

Works very well as a hobbyist bench power supply. The build is durable and strong, and size/form factor is convenient for those with limited bench space compared to a full size unit. Voltage and current measurements tested as accurate, which is really the most important thing. The controls are decent, but not excellent, but again, it is an accurate, low-cost power supply. It does exactly what it is supposed to do and it’s a solid value for the price.

Man this thing is awesome. The knobs are nice. The functionality is very intuitive and easy to configure and its so fun to use. No complaints from me as this unit is just to awesome to pass up. Weight is what you would expect for a linear power supply. But who cares about weight. It works abd it works well.

This is a great Linear PSU and very inexpensive. It's stable and reasonably accurate using a Fluke meter it was around 0.1 volts off at 30 volts. It has no noise or stability issues as I would expect from a well designed linear PSU. The only caveat is, the interface is gimmicky with lots of buttons and memory controls. I have designed commercial power supplies in the past and all it really needs is a voltage and current adjustment potentiometer, with an accurate meter. All the other controls are unnecessary, and a total mess design wise. Apart from that, I would buy a second one as it's excellent value for money, and great for hobby audio project testing.

I'd been using it as a backup when I had to send in my Rigol DP832 for a failed control board. I used this unit for almost the entirety of a quick turnaround project, and it never did anything unexpected. No weird pulsing on on/off at the outputs, so that appears to have been fixed. Power button felt/feels solid, but the transformer still has a bit of inrush buzz on startup. I left it running for 4 hours at max power to see if anything odd happened. Not a peep. I thought I'd be giving it to a colleague when I got my DP832 back, but this PSU's small size and performance means it'll be going into the mobile toolbox instead :P