Agilent 82357B GPIB Genuine or not

[@w1qg]

I have 2 of these that were purchased off eBay about a year apart. They came exactly as you have shown, complete with the bogus Cerificate. They both work perfectly.

[@GadgetReviewVideos]

If your looking to save some on the cables I would recommend this cable. I've been meaning to post the video, but time is a factor. I've torn this cable down and it's well made especially for the price. Their were some cheaper ones, but they seemed to cheap to even risk trying and had no reviews. Plus this one I ordered was amazon prime, so easy return if it ended up being junk. www.amazon.com/Monoprice-100698-IEEE-488-Metal-Hood/dp/B001VFX92Y?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00

[@grhinson]

Looks like the cert was a bad cut and paste, format issues

[@MattKasdorf]

Did this work? Is there a follow up?

[@SoddingaboutSi]

Oh it works fine.

[@someonefromjapan]

This one is fake, but the best fake available, made with branded chips, with full buffered bus. There is a Cypress USB bridge, some Xilinx controller, probably performing the role of command interpreter, and register storage, and something that looks like original Agilent bus encoder. A few more SOP chips, which I guess, are bus buffers. Still, I have some issues with the connected ESG-D, which freezes from time to time. I am not sure, it it the old instrument, or the adapter. Recently, we got similar fake, but labeled as Keysight. I found that it puts instruments in remote mode repeatedly, with no reason. Working with it connected locally is virtually impossible. Upon opening, I found just ONE small non-branded QFP microcontroller. And nothing else, puttin aside LEDs and terminating resistors. Not a sign of a bus buffer. No wonder it cannot communicate witht the instruments well.

[@GadgetReviewVideos]

FYI, their are also some fake NI - nation instrument ones. I called NI and they are aware of this and cautioned me on where I buy theirs since it could be a fake one. I'm out sure about the quality of the fake NI one. If you wanted to take your apart the label comes off easy in one piece if you lift the corner with an exacto knife, amid goes back good also if you need to return it. Biggest factor is no shielding on the inside of the plastic housing. Bad soldering, and a third party older firmware that someone else developed that is not the latest version and has some bugs from what I was told. I don't know if you would be able to update is third party software on this fake unit? But the main chips are the same as an authentic one.

[@SoddingaboutSi]

I appreciate your time in responding in such detail. Is there a screw under the label? That would explain why I cant get the sucker apart! Regarding GPIB/IEEE cables, we used to use them at work so I Managed to save a few but thanks for the pointer. The GPIB seems to work correctly but I will pop it open and see what its like.

[@GadgetReviewVideos]

+Simon Spiers +Simon Spiers Yes, the Philip screw is under the big label in the middle with Agilent printed on it.

[@proudsnowtiger]

I've seen worse official documentation from pukks Far Eastern factories, and it's quite conceivable that the certificate was a locally produced document based on a template faxed from the US and never proof-read by a native English speaker.

[@SoddingaboutSi]

It's comical they failed at this final hurdle. Looks genuine otherwise.

[@proudsnowtiger]

No, I think it's genuine - just that the Malaysian manufacturer's production QA department wasn't very good at English. That certificate would have been entirely produced in-house and probably never checked by Agilent HQ.

[@SoddingaboutSi]

+proudsnowtiger No sorry it's a fake. A good fake but a fake.

[@engineer9750]

does it actually work?

[@SoddingaboutSi]

Yes it does.

[@engineer9750]

@@SoddingaboutSi ohh nice. I a mabout to buy a chepo one too.

[@supyrow]

well, I would crack it open and see inside for board and solder quality. that certificate is definitely not legit. LOL 50 bucks though... if it works; cant beat it! 73!

[@SoddingaboutSi]

Tempting to pry it open but might need to send it back if it's faulty.

[@supyrow]

I understand! however if you do pry it open, see if you can get some footage, id love to see the inside!

[@GadgetReviewVideos]

+su pyrow I can tell you their is already a lot of HD pictures of the real and fake on on this thread. I think most of the pictures on on page 6, this is why I didn't bother posting my pictures of the fake one. And my real one matched the current pictures also in this thread. www.eevblog.com/forum/testgear/flood-of-new-agilent-82357b-gpib-usb-adaptors-on-ebay-the-real-deal/225/