Thank you for your nice comment ! Still has this one, I like it very much, it was very well adjusted, heads were aligned and perfectly lapped to the “zero” condition. Still is one of the best tape machines I’ve ever heard, using it as a “master tape” engine. Unfortunate y, nowadays I’m too much overloaded by my current job tasks, so practically haven’t no time to make videos about my engines, as well, as with my taperecorders , like Pioneer 707, Tanderberg and Nakamichi. Hoping, this time will arrive soon. Thank you and have a nice day !

You're highly welcome and have a nice day !

Thank you for your comments, much appreciated !

Thank you very much for your comment ! Definitely, absolutely agree with you, I've two DPS 3010U and both are in duty every day over six months, changing the accu batteries, powering some low voltage devices, and performs very well. The only negative point - and you're totally right - cooling fan is loud, but we should agree, that loud cooling fun isn't a big price for the great DC power supply performance. Thank you and have a nice day !

Thank you for your question ! I should say, that practically not, using it for a long period of time, only becomes noisy, but not so hot. Thank you !

Thank you, what a great question ! Basically, in your question there is a part of an answer - the ground terminal internally connected to the metal case and chassis. If you will connect the ground terminal of your power supply (or any other electrical equipment), this will save a life. in case of a short circuit of the power wires to the device case. Short current in such cases will be directed to the ground. Thank you for your question again, and have a nice day !

Hi and thank you for your nice question ! I'll try to explain this quite simple. In fact, in CC (constant current mode), device will supply constant, exactly as was adjusted by CC regulator knob. For example, you set 1 ampere current on 10 ohms load, that means, that device will keep on output terminals 10 volts. If you will change your load from 10 ohms to 5 ohms (for example), device will adjust output voltage exactly to the point, where output current will be again 1 ampere (voltage will changed to 5 volts), so the current will be the same, 1 ampere. And, for example, you will change the load to 20 ohms, device will change output voltage to 20 volts, to keep 1 ampere stable current. So, basically, device just keep the Ohms law. B.t.w., this CC option really can protect your load ( especially, when you're make some experiments), and to limit your current to the safe levels on the first power on. Thank you very much for your question, it was really interesting to write an answer.

Hi and thank you for your question ! Cooling fan is switching only, when your load consumes sufficient amount of power, of if you powering something low voltage but high current load, for example, 2 - 3 volts load with 5 Amperes of current. This means, that active part of this voltage supply is under bigger load ( 35 volts - 3 volts = 32 volts voltage drop on active regulator elements with a current of 3 amperes, for example, so power on active element should be approx. 86 watts), so to avoid overheating, microcontroller is switching cooling fan for a few minutes. Definitely, it's a very nice power supply, I'm currently using two such devices. Thank you and have a nice day !

OK 👍thank you for your answer, great video!@@crazyengines88​

@@dirkprins Thank you, much appreciated !

Hi, thanks for the nice comment ! 😀 You can't believe, but I know personally at least, two people, who was using bench power supplies to power their SW receivers / FM radios. The only difference was that both have old fashioned style power supplies, with iron core transformers, so, less noisy devices. Thank you and have a nice day !

Good afternoon, thanks for your question. I have not tested this power supply, but judging by its external and internal appearance, it is very similar to the UNI-T UTP3315T, which I compared with Wanptek DPS 3010U. This Korad KA3005P also have an iron core transformer, with a PWM voltage and current stabilization circuit. Apparently, I think that in terms of characteristics they are very similar, up to 30 volts, with a load current of up to 5 amperes. The ripple level of the output voltage is also, I think, very similar to the UNI-T UTP3315T. As far as I know, judging by the photos of the internal view, the build quality is good, but I can’t tell you more, because I didn’t hold it in my hands and didn’t test it. Thank you.

Thank you very much for your comment ! Yes, you’re totally right , under the load this power supply shows some increased voltage drop, but it’s still negligible for the most power supply applications. In experimental electronics usually, some kind of surge protection is recommended, a good quality electrolytic capacitor should eliminate the most voltage surge.

Hi, and thank you for your message. It's interesting to work on testing your products, especially regulated power supplies. I'm owning two WANPTEK DPS 3010U , using both in my laboratory / workshop, and satisfied by their work. I also send a message by email to your address at your KZfaq channel, so let's be in a contact. Thank you and have a nice day!

I just bought my my first power supply, might come bother you later 😂

@@tokin420nchokin Hi, and congratulation with your purchase! Definitely, I will not be bothered in case of questions or requests from your side, just drop me a line, if you will need to ask something about this DC power supply. Thank you and with best regards,

Hi, apologizing, but I think, that I can't catch exactly, what do you mean, please, explain. Greatly appreciated, thank you and have a nice day !

​@@crazyengines88your English is fine. While you probably wont say it, screw that guy.

@@tokin420nchokin Thank you for your comment, appreciated :-)