Author Topic: EEVblog #509 - Rigol 832 Lab Power Supply  (Read 94266 times)

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Offline Selectech

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #75 on: August 17, 2013, 11:50:58 pm »
I appreciate the detailed reviews and any other bits of info that come out re the equipment. I look at lots of info and informative reviews help a lot. Every user has their particular likes & dislikes, but generally the review provide lots of info to decide if whatever it is would be useful or a lemon.

I have a DP832 { along with a bunch of other Rigol equipment } and am pretty happy with it. It's a good replacement for some of my older  less capable power supplies. Weird button layout, but you get used to it. Better than no buttons / functions which is what I was replacing. At $400 it's a good piece of gear for me and like all things you need to learn & know it's weak & strong points.
 

Offline nack

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #76 on: August 18, 2013, 12:05:48 am »
Does it act as a DCV multimeter when the channels are off?

It does not unfortunately, it will always read 0 volts. And that's the only negative aspect of the power supply from my personal opinion.
 

Offline mickpah

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #77 on: August 18, 2013, 12:18:24 am »
Well... It could be worse.



Alexander.

That is FUNNY!  :-DD

- something for both the early and the late adopters, or maybe the innovators and the laggards :)
this brings back bad memories for me!
about 20 years ago I was working as a tech in a country hospital ( about 250 beds at the time).
A black box with a rotary phone dial arrived in the workshop with a ticket to safety test it. Having never seen it before during our routine checks we asked what it was.
Answer -  Electroconvulsive therapy machine !! from memory it had a 50v ac output - we didn't actually look too much as it sailed towards the bin.
Operation was simple paste electrodes on the head , insert mouthguard dial 1 - for slightly fired brain 0 for max.

terrifying how medico's experiment
 

Online EEVblog

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #78 on: August 18, 2013, 12:24:26 am »
I am not much into speculating specially when we can ask Dave directly about what sort of relationship does he have with Rigol, and in general with the companies he reviews stuff for.
Sure we all have our own opinion, but how about we wait for Dave to reply and let us know what is going on?

Many of the manufacturers simply don't care much about my blog (with so many advertising and promo channels around the world, the EEVblog is not as big as you'd think), and Rigol is one of them. About the only interaction has been to send me some stuff for review, eventually. They aren't exactly Jonny on the spot with getting me stuff.
As I said, I rarely speak to Rigol at all, and when I do it's Chris Armstrong from the US branch.
You can ask him yourself and see if the accusations are true: http://twitter.com/RigolTechUSA
I repeat, I do not get paid for reviews. And in fact I have so far NOT formally reviewed a single bit of Rigol gear they have sent me (DS2000, DS815, DG4000), I have only done teardowns of them or used them in various videos, or did an unboxing etc.
The 832 PSU is mine, I bought it, it had nothing to do with Rigol. Same for the 1052E
This is the last you will hear from me on this issue, because I'm sick of repeating myself.
 

Offline Corporate666

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #79 on: August 18, 2013, 12:31:33 am »
For the last time:

Talk about wishful thinking!  ;D  This topic will come up again, and again, and again as long as you are doing these videos :)

To those asking the question... it's a bit feather ruffling when people say "it's about time Dave address this.." and those kind of comments, because it has never been a secret.  When I first discovered EEVBlog, I consumed tons of Dave's videos... and I found myself wondering the same thing after a few.  But he spells it right out on his website, and he often says it in the forums, and he often says it even in his videos.  So when people ask the question, it's not that Dave hasn't been clear on it, but rather the person asking the question has failed to inform themselves on the subject from the resources available. 

Not that there is anything wrong with that - long time members will know more of the ins and outs than a newbie, but the question should always be asked respectfully and with the presumption that no funny business is going on.

Frankly, one would be a fool to discount any of Dave's videos, because the video record shows he has no problem calling it like he sees it.

Lots of people love to take shots at someone who is doing well, and Dave is no exception.  People also tend to get their panties in a twist when someone criticizes something they've bought - that's just human nature.  And technical people and the young often tend to exhibit those traits more than others.  But the people jumping on Dave's case about this should stop and consider for a moment that Dave supports a wife and kid with this business - and before taking a shot at the reputation that built the business, it would be the decent and respectful (and mature) thing to do to ask rather than to accuse. 

Citizen, you haven't bothered to acknowledge your mistake to Dave or to anyone else... and frankly dude, that is pretty shit.  And as for the comment about Dave worship, look back at the comments when he made his April 1st video about how he was getting sponsored by a big company and they would be moderating is reviews, etc.  The man got skewered by a ton of people before they realized it was a hoax. 
« Last Edit: August 18, 2013, 12:36:56 am by Corporate666 »
It's not always the most popular person who gets the job done.
 

Offline Wytnucls

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #80 on: August 18, 2013, 12:42:35 am »
Good job Dave! Informative and entertaining at the same time, as usual. Don't let the peanut gallery get you down.
Anybody who has watched your 500+ videos over the years should know by now not to question your integrity.
You have a deserved following and a bright future in this business.
 

Offline dentaku

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #81 on: August 18, 2013, 12:43:33 am »
Yes I think it's stupid and annoying to keep accusing Dave of taking money for reviews and yes I think Dave can be a bit annoying sometimes himself, but we watch his videos to get his opinion so I guess his job is to be opinionated. As long as he doesn't get a big head over all he attention he gets then that's fine.

ANYWAY... If I had a nice power supply like that I would set up groups and sequences in 32 ticks at musically useful intervals and send the to a VCO to make music :)
Connect it to a 1V/oct synth or drum machine and you have a makeshift step sequencer because that's pretty much what it is.
 

Offline lewis

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #82 on: August 18, 2013, 01:24:05 am »
Jesus Christ people, Dave likes the Rigol and said some nice things about it. So what? Now he's sold out and in the pay of big $$$ corporations, driving a Cadillac fuelled with children's tears, smoking giant rain-forest cigars lit with $1000 bills individually hand plated with gold by starved Africans addicted to his evil GM baby milk?

Illegitimi non carborundum.
I will not be pushed, filed, stamped, indexed, briefed, debriefed or numbered.
 

Offline c4757p

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #83 on: August 18, 2013, 01:48:36 am »
Just to be a contrarian.... I think the people giving Dave hell are pretty much done now... and now we're all ganging up on them...

How about we all go back to talking about the PSU itself?

Dave.... have you heard anything about the release date for the Hello Kitty model?
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Offline Corporate666

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #84 on: August 18, 2013, 02:09:11 am »
Just to be a contrarian.... I think the people giving Dave hell are pretty much done now... and now we're all ganging up on them...

How about we all go back to talking about the PSU itself?

Dave.... have you heard anything about the release date for the Hello Kitty model?

Time zones.


They'll be back!


So as for the PSU itself...has anyone confirmed that the hardware is identical?  Is the screen identical too?  Is the only difference firmware???
It's not always the most popular person who gets the job done.
 

Offline xchip

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #85 on: August 18, 2013, 02:28:33 am »
Hey Dave,

I'm so glad to hear that! Thanks for clarifying and for your great reviews! :)

 :-+ :-+
« Last Edit: August 18, 2013, 02:30:20 am by xchip »
 

Online EEVblog

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #86 on: August 18, 2013, 02:32:42 am »
So as for the PSU itself...has anyone confirmed that the hardware is identical?  Is the screen identical too?  Is the only difference firmware???

From what I gather in another thread, yes, identical hardware.
 

Online EEVblog

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #87 on: August 18, 2013, 02:34:18 am »
Dave.... have you heard anything about the release date for the Hello Kitty model?

Demand is so high, Rigol are rushing it through production now.
 

Offline os40la

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #88 on: August 18, 2013, 04:14:23 am »
Dave.... have you heard anything about the release date for the Hello Kitty model?

Demand is so high, Rigol are rushing it through production now.

Got mine today....  :-DD
"No, but I did stay at a Holiday Inn Express"
 

Offline Redtailed

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #89 on: August 18, 2013, 04:28:43 am »
I'm not in the market for a programmable power supply, but based on this review I would probably favor this unit instead of the one I currently use sometimes at work (a similarly priced BK Precision unit). While the numerical entry is a bit unusual (I'd prefer a standard 10-key layout, like a calculator), I think Rigol is just trying to be a little different or try new things. Sometimes such ideas improve upon the status quo, and sometimes they don't.

On the subject of Dave being unbiased, which has now thoroughly been beaten to death (sorry), I wanted to add my two cents because I happen to have had a very relevant experience recently which I think may be of interest to share here.

A few months ago, I started needing to use digital storage oscilloscopes at work. My experience to that point was only with analog scopes. I did some research, and found Dave's reviews of various scopes (Agilent, Rigol, etc) as well as numerous other sources. I kept Dave's generally favorable and enthusiastic videos regarding Rigol 1052 and 2000 series in the back of my mind. A few weeks ago, I decided it was time to add a DSO to my home lab, and I started looking seriously to purchase. I demoed/tested similarly priced BK Precision, Tektronix, and Rigol models. Finally I decided on the Rigol DS-2102, based on my personal demo of it as well as the qualities revealed by Dave (and others) in online reviews. I personally felt that Dave had provided me with the most useful information and felt that he was responsible to a large degree for my knowledge of Rigol as a manufacturer, and my decision to even demo their unit.

I asked Dave directly if there was a way I could purchase the unit through his site or network in such a way he would receive commission. He replied:

Quote
I'm afraid not. Thanks for thinking of me though.

I arranged with my local dealer to purchase the scope, who recommended I work with Rigol US directly. While making the purchase, I asked the Rigol sales rep, Steve Barfield, if I could contribute something to Dave because I felt he informed my decision and deserved credit. I received an email reply from Chris Armstrong at Rigol, whom I don't think would object to my quoting part of here:

Quote
...he actually resists direct payments in order to keep his objectivity, but he does get ad revenue from his website.

It's true that Rigol's agency puts ads on Dave's site, but I don't think that causes or is due to any bias. If you recall, Dave was not afraid to show the 1052 to 1101 bandwidth hack. (Rigol US even has a link to that video on the product page!) In "DS2000 Playing Around" he wasn't afraid to throw out a few comments about weird firmware issues. I believe Rigol is a smart company. They have (so far to my knowledge) admitted mistakes, issued fixes on a timely basis, and probably values Dave's objectivity as much as we, his audience, do.

If their products sucked, and Dave called them out on it, they probably would not advertise on his site. That's just business.

I remain confident that if Dave opened up a Rigol product that reeked of oversight, bad design, or dangerous flaws, he'd have a field day showing them in all their glory and ask the manufacturer to respond.
 

Offline pickle9000

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #90 on: August 18, 2013, 04:51:10 am »
The sad part is that if Hello Kitty licensing was free they'd probably have an entire product line based on it.
 

Offline Fsck

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #91 on: August 18, 2013, 05:01:56 am »
The sad part is that if Hello Kitty licensing was free they'd probably have an entire product line based on it.

if it gets girls into STEM fields by enticing them early on, I'd be all for it  >:D
plus, it'd peeve off all the serious people.
"This is a one line proof...if we start sufficiently far to the left."
 

Online EEVblog

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #92 on: August 18, 2013, 06:50:32 am »
I remain confident that if Dave opened up a Rigol product that reeked of oversight, bad design, or dangerous flaws, he'd have a field day showing them in all their glory and ask the manufacturer to respond.

That's the thing, I actually LOVE doing that, and I think it's one of the major reasons my channel is popular despite all my flaws.
In fact it's very difficult for me to be biased or to deliberately try to deceive or hide things, even if I wanted to. I have 80,000+ subscribers of the best and brightest in the industry fact checking everything I do, and many have used the product more extensively than I have.
It's rare that I upload a video and don't get some mistake or oversight pointed out to me in the first hour.
With teardowns for example I can't hide a thing because it's all there in glorious HD for all to see.
As for the reviews, they are detailed hour long epics. But in theory if I found something bad I could edit that out and pretend I didn't see it, but I continue to prove time and time again that if it happens, I put it in the video. And as I said, I LOVE doing that. Test equipment is something I've always loved, and I want better test gear for myself and the industry, and I enjoy the fact that I possibly have some influence (however small) on manufacturers into giving us all better gear.

« Last Edit: August 18, 2013, 07:01:38 am by EEVblog »
 

Online EEVblog

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #93 on: August 18, 2013, 06:53:05 am »
if it gets girls into STEM fields by enticing them early on, I'd be all for it  >:D
plus, it'd peeve off all the serious people.

Someone at Rigol simply HAS to do this just for kicks at their next trade show!
Heck, it could even be a joke promotional thing - "Some people don't like the look of our new PSU. Well, it could be worse!"
 

Offline mikeselectricstuff

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #94 on: August 18, 2013, 08:49:08 am »
Does it act as a DCV multimeter when the channels are off?

It does not unfortunately, it will always read 0 volts. And that's the only negative aspect of the power supply from my personal opinion.

Actually it should't be hard to design a dual supply in a way that allowed one channel to be used as a dummy load with metering, so you could use it for DC-DC converter efficiency measurement - that would be an extremely useful feature.
Youtube channel:Taking wierd stuff apart. Very apart.
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Offline Fraser

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #95 on: August 18, 2013, 11:07:53 am »
Just saw the video. Not impressed with the Rigol PSU. I fall into the camp of those who think the front panel display and control pad stinks. The update speed on the output voltage indication is what I would expect of a $50 piece of junk. What were Rigol thinking ?

Sorry, in my book a total fail.

I recently purchased three GWInstek PSP-603 programmable power supplies. They may not have the spec of the Rigol but at GBP80 ($120) each they were great value. I can use them independently in a neat vertical stack or as separate units around the lab. Up to 60V at 3.5A output, so pretty versatile. The lower voltage PSP-405 was also available. That had greater voltage resolution. Mine were Brand New Old boxed Stock from a company that was being shut down and selling off its inventory. The PSP-xxx series have a more friendly user interface and a nice large display. The KISS principal has been applied well.

http://www.gwinstek.com/en/product/productdetail.aspx?pid=38&mid=75&id=164

http://uk.farnell.com/gw-instek/psp-603/psu-programmable-60v-3-5a/dp/4911751?Ntt=psp-603


And finally, what's with Rigol trying to make their kit look like it came off the Starship Enterprise ? Don't get me wrong, I am a Trekkie, but I need a power supply that is quick and easy to use. I thought the days of trying to impress with flashy displays and lit buttons died in the 1980's ? I remember Alan Sugar (AMSTRAD) having lots of flashy lights put on his AV equipment to sell it to those who were impressed by 'technology' Basically bragging rights but the kit was still a pile of cheap junk behind the flashy front panel.
« Last Edit: August 18, 2013, 09:20:32 pm by Aurora »
 

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #96 on: August 18, 2013, 11:27:20 am »
should be great to see a comparison between this power supply and a hameg (7042-5) one...
 

Offline firewalker

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #97 on: August 18, 2013, 11:33:35 am »
I recently purchased three GWInstek PSP-603 programmable power supplies.

I looks quite nice! Any inside photos?

Alexander.
Become a realist, stay a dreamer.

 

Offline madires

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #98 on: August 18, 2013, 12:24:37 pm »
That is FUNNY!  :-DD

- something for both the early and the late adopters, or maybe the innovators and the laggards :)

... and the rotary encoder would be much more usable  >:D
 

Offline dr.diesel

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Re: EEVblog #509 - Rigol 832 Lab Power Supply
« Reply #99 on: August 18, 2013, 12:28:39 pm »
GWInstek PSP-603 programmable power supplies.

Does look like a nice supply.  However, kinda an apples to oranges comparison as the GW is a switcher.

Still very useful though, with up to 10 amps I might have to have one myself.


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