X-Tronic PX-70 Linear Variable Bench DC Power Supply 30V 5A Range • Output On/Off, Memory Recall, Lock/Unlock Func • 5 Protection Modes • USB Output • Precise Rotary Encoder Dial • 3 Sets of Leads

I have an Electronics Engineer Degree. So, I have spent years in an engineering lab. After over a year of comparing power supplies to add to my collection, I found the one I trust.This one has smart features for smart testing. It has precise voltage and current control. A separate output switch for safe, gradual circuit activation. Total control—just how you want it.Safety is always #1 with me. It hasContinuous or momentary Over Current Protection (OCP) with audible alerts. It's like having a built-in guardian for your gear.It comes with everything you need—leads included. You get a very smart design, an intuitive layout, and a price that’s genuinely outstanding to me.I tested it a lot. It just impresses! It’s efficient, protective, and ready to work. If you’re serious about getting started the right way, the smart way but with professional quality in mind - this is the one. Don't let the price fool you. It's not the cheapest and certainly not thousands or more. This is a great deal, value packed and should last you. This powerful supply and me have really bonded. So, I have added it to my emergency contacts 🙃🤣.

Being a linear supply, the voltages all measure great and are stable. The price and build quality of this unit are among the best in the price range.Two annoyances are the dial adjustment knobs are very sensitive which sometimes creates a challenge to dial in the right volts/amps. The other is the super loud beep when turning the output on and when over-current trips. I imagine its for safety.

Only used it one day so far, but I can say at this point it's very easy to use. The manual was easy to follow and well written. It's very well built and the design/cosmetics are very nice. It's just pleasing to the eye, and I love the USB port where I can change the DC from 5V - 30V. I use my own USB cable with connectors that I can plug into bread boards and use on other projects, so I'm happy to have this item. Granted I have only used it for 1 day and very happy with it I do not expect (hopeful) any problems with this DC PS. I love the Cont.- OCV (continuous over-current protection) and its other features. Based on just a one-day experience I highly rate it as a very attractive and well working DC PS.

Having tried (3) different dial supplies off of amazon, most of them had the same problem, when adjusting voltage, it wandered so bad that I literally had to wait for it to settle before connecting anything due to overvoltage and not being stable, even after connecting sometimes it still happened.This unit is so incredibly easy to set, no wandering, NOTHING, you dial it in, set the amperage, and best of all you can lock this setting into one of the memory spots, ultra easy and ultra convenient. I use it to test mostly 12v car items to check wiring and such, but also smaller things, battery powered lights and such. So I just set the most used voltages into the memory buttons.No more wandering, no more waiting for voltage to stop and no more having to adjust every single time I change to an item I am testing often. This item also seems built well, its probably twice as heavy as each of the other supplies putting out the same voltage, but the other supplies supposedly put out twice the amps, yet this is about twice as heavy. The leads included are a bonus and seem more than heavy enough for continued use.

There was only one review for this item which made me a little hesitant but it had the features I liked and with the coupon it was the price point I wanted to stay at.I'm just a hobbiest and this is my first power source. This one doesn't have a separate power button for output, which would have made it perfect but it has some other features like the 5 volt limiting switch on the back and the two over current protection buttons.The claim of fine tuning is a little misleading, you push the voltage or amp button in to select the digit you want to change, much easier than trying to find a wandering value with a dial while it settles.I also like the memory feature, you can save 4 of them. It's the main reason I chose this particular model.I had a question about triggering the relays and was worried that I was going to damage the unit with my exuberant inexperience so I thought I would give the number on the pamphlet a call. Much to my surprise I got a real person right away that answered all my questions and went out of their way to be helpful. That's rare in this day and age.I'm retired and this all came about when I did some simple electrical repairs around the house. It peaked my interest in electronics so I got an Arduino kit. I've been spending more time setting up circuits on a breadboard to learn about different components, which has been fun and interesting in itself. I'll get around to the Arduino eventually, if I don't it doesn't matter. It's been challenging and sometimes frustrating but when I look at where I started I realize I'm learning so much. It beats sitting around watching the price is right.

I needed a relatively low noise power supply to debug prototype RF electronics, and this supply worked very well. Operationally, it's easy to understand and operate.The only things keeping me from giving it all five stars are that the hook lead clips aren't very durable, and the fan on the supply is rather noisy when it kicks in.

Works Well. Good purchase!