@coriscotupi

After some research a while back, I bought a 0-30V, 10A power supply hat has almost none of the inconveniences shown. It has front panel power & output controls, no need to short circuit the output to set limiting current, has 3 configurable memory presets, OCP, USB fast charge output and shows little electrical noise, even when delivering appreciable current. It does take its time to revert to a lower voltage from a higher setting, though. But this manifests itself mainly when the voltage difference is high (say going from 30V to 5V), which is not typical in my use anyway. It's a Wanptek APS3010H.

Oh, and I still have the linear,  variable 15V 1.5A power supply that I built in 1978 as my first electronics project. Still works, too.

@cylinder_down

You somehow found the most inconvenient power supply ever. 
I bought a similar looking power supply from AliExpress, but it had an output on/off button at the front. 
It also didn't force you to short the output to set a current limit. There was a dedicated knob for current limiting.

@tookitogo

1:27 The Korad KD3005D can be had for around $75, and is probably the cheapest halfway decent linear bench PSU out there. I do recommend spending the extra $20 for the KA3005D, though, because it has a proper output on/off button and presets.

@skydyverjym

Thank you for taking the time and effort to produce this in english

@Steamrick

I built myself a very cheap 'lab PSU' using an old 19V laptop power brick, a DC-DC converter off amazon and a voltage/amp meter that I mounted together on a bit of wood. I need a small screw driver to turn the controls. It's been... sufficient... for occasional usage when I need a specific voltage.

@vasilealin1021

I do electronics repair and I use a power supply just like this one for about 2 years now and I never had any problems it never let me down, so I think that if you plan on doing small projects like myself this type of power supply is good enough.

@projectartichoke

Very informative. Thank you!  For hobbyists who only need a few voltages, building their own adequate linear supply/supplies may also be an inexpensive option.  There are lots of circuits on the web for adjustable current limiting, other than that all that's required is a transformer with the right output voltage and current rating, a fuse, a switch, a bridge rectifier, a voltage regulator, perhaps a choke, and an electrolytic capacitor or two.  It's very easy to build a clean linear supply for a single voltage with a fixed maximum current just by selecting the correct transformer and three-pin regulator.

@pauljackson2126

My university was getting rid of some old non working power supplies.

In got 2 for free and repaired it and now it's working perfectly.

Though it can only provide 33V at 2A, it has 2 channel and I already have a ATX PSU for high current anyway

@S54

5:38 actually there is. I spent maybe 10$ more and I can set current without shorting (it goes back to actual value in a second or two). And it drops voltage very fast when commanded. Also adding output button can be made as diy improvement.

@chad134

Great video.  I wish I would have seen it before I bought my cheap power supply.  At least mine has an on/off button on the front, lol.  I probably would have gotten mine anyway because your assessment is spot on.  As a hobbyist, I don't really need a better more expensive supply.  Also, the dubbed audio didn't bother me one bit.  Thanks!

@warhornz

I was so happy to buy one of those cheap power supplies. But now I want to cry! 😢

@Mwapaca

I have one like this, the power button is on the front and the voltage decrease fast. Otherwise i am not bothered by having to make a short to set the current limit, usually i know before plugging the circuit how much current i want. Those cheap power supply are good enough for a repairing hobby.

@tiagocampos959

The hobbyist reality is an Aliexpress lab, multimeter true rms, power supply, oscilloscope, function generator, IC programmer and so on. When I was a studant, my power supply was linear, but controled by a LM317, this cheap one was a dream.

@Zhaymoor

your videos are very useful, Thak you very much

@tommythuyen4063

I bought this power supply in 2018 and it is working fine. Because my need is only to make IOT devices and test power supply for PCB in some small projects. 😊

@mrDarktrooper

Kikusui is my personal favorite power supply manufacture with linear switching topology.

@Rony...1310D

ESTOS SON LOS CONTENIDOS QUE UNO BUSCA BIEN AL DETALLE Y CONSEJOS REALES Y RECONTRA PROBADOS...!!! LO FELICITO........PROFE. DENKI.....SIGA ASI CON MÁS VIDEONES COMO ESTE OJALA LLEVE ESTA CLASE DE ANALISIS A UNA FUENTE DE PC. DESDE LAS GENERICAS HASTA LAS CERTIFICADAS ... VISTA 360° CON ANALISIS FULL Y CONSEJOS  PARA MEJORA POSIBLE...

@splitprissm9339

2:11 better than what the  HSPY series does - they seem to save the last voltage setting only occassionally. Since there are  400V and 1000V variants  of that series, you can unexpectedly start these up at lethal voltages if you recently had them set high and only turned them low right before switching off.

@daijoubu4529

The RD DPS/RK/RD series DC-DC converters are well regarded

@gbmr-s6o

Muchas gracias por el análisis desde Uruguay.